Ask the General; Can You Fix This?

fiberglass poolDear General-

 

We’re relatively new inground pool owners. We’ve enjoyed reading your articles about common pool maintenance problems to avoid, new pool owner FAQs, tips and tricks to save money and keep our pool running at its best, like the importance of backwashing and how to care for our pool over the winter. There’s quite a lot to learn! We’ve still managed to make some rookie mistakes though. Your post about overflowing your own pool made us feel much better, so thanks for that! However, we are curious what the Thursday Pools warranty policy is. Also, do you have any other stories to share that will help us feel better about being swimming pool novices? We could use a chuckle today.

Signed-

Embarrassed in Elmore

 

Dear Embarrassed–

Believe me, you have absolutely no reason to feel badly. We all do the best we can, and some lessons are just learned the hard way.  However, since you’ve asked for a chuckle today, I’m happy to oblige. I do have a few stories up my sleeve from my years in the fiberglass pool biz.

We all have been told at one time or another by friends, teachers, and parents that there are no silly questions, just silly answers. In some circumstances, I believe there are both. To say a question or an answer is silly, can be embarrassing, and hurtful to whoever said it or asked it. Most of the time, we are not instructed completely, or the terminology used is completely foreign to us. I personally have that problem when talking to my grandson about computers. He is talking RAM, operating systems, and a whole myriad things that I have no idea what he is explaining to me.

Unfortunately, sometimes we just don’t completely communicate things we are familiar with to those who don’t. I also sometimes mistakenly think that new customers understand how things work. These are some of the things that people actually do that are our fault for not being specific when giving advice. On the other hand, people say and do some pretty funny things. Here are a few of my favorites:

 

SIMPLY SHOCKING.

I once had a new homeowner call me with a water problem. He said the water just didn’t sparkle and looked a little cloudy. I asked when the water had last been tested. He said they’d gone to the pool shop and were told to put some bags of shock into the pool. They did that, and it didn’t help. They were then advised to put two more bags in, but the water didn’t improve. I stopped by to troubleshoot thinking that there may be an issue with their filtration equipment. What did I find? The bags of shock laying on the bottom of the pool unopened. We fished them out with their dip net, OPENED THEM and poured the chemicals into the water. The customers’ response was, “We wondered how long it would take for those bags to dissolve!”

 

RECYCLING IS NOT ALWAYS A GOOD THING.

One customer was determined to save on water costs. So, he decided to put the backwash hose into the pool when he was backwashing to save water. Guess what? When you’re using the same hose to pull dirt of the pool that you would use to put water into the pool, you’re going to PUT DIRTY WATER IN YOUR POOL.

 

SERIOUSLY BLUE.

Another customer loved the idea of having beautiful blue water when he looked out his window. He did not seem to understand that the beautiful blue color in a fiberglass pool comes from the color of the pool’s walls–not the water itself. He asked me if he could add blue food coloring to his water to achieve this effect. I said, “Well, unless you want your entire family to look like Smurf’s, I would not recommend it.”

 

NO “FEESHES” ALLOWED.

Once, while I was traveling, we stayed at a motel with a pool. They had a sign posted at the pool that warned, “Do not put fish in the pool.” Confused by this, I asked the maintenance guy if they were having trouble with people putting fish in the water. And he said “no,” but someone told him that the health department would shut down the pool if they found fish in it. He didn’t know why. I asked, “Is it possible they said feces, not fish?” And he said, “Oh yeah. That makes a lot more sense.”

 

OVERINFLATED.

One customer called me, very upset because he was having trouble with the tubes for his winter cover. Even though he had filled them, they were not holding his cover in place and were not inflating properly. (The word “inflating” was my first clue to his troubles.) After a minute or two on the phone, I realized he was trying to fill the WATER tubes with AIR. His reply was, “Well, I inflated every other darn thing my wife bought all summer–I figured I needed to inflate those too!”

 

LANDSCAPING THE POOL.

thursday pools warrantyI got a call for a renovation bid from a gentleman who had bought a house with an existing pool. He let me know that the pool wasn’t working properly and wanted an estimate to get it black into swimming shape. I asked him if he could send a photo of the pool. When I saw the photo, my answer to his request for an estimate was, “A lot.”

Maybe when someone told the previous owner to landscape his pool, he didn’t understand that they meant AROUND the pool, not IN IT. It might have been time for the guy to get a new pool. So, the next time you’re worried that you’re not doing a good job with your pool maintenance, take a look at this picture, and I’m sure you’ll feel better right away.

Thanks for asking. I enjoyed this topic, and trust me, I can and will share more in the future.

Until next time-

The General

DIY or Pool Maintenance Pro? Caring for Your Pool Takes a Little of Both

Whether you’re a do-it-yourself type or a big believer in delegation, you are ultimately responsible for your pool. And no one will care more about your investment than you. Factors such as your inground pool shape and type can affect pool maintenance and your decision to take on certain tasks. You can handle several routine tasks, but some require pool professionals. Let’s explore what you need to know about maintaining your inground pool.

Regularly Caring for Surfaces

Consistently cleaning the walls and floor are relatively easy tasks that should be completed as needed. You should plan on doing some of this yourself, even if you hire a weekly pool service.

Thursday Pools' robot underwater cleaner and pool skimmer

  • Brushing the walls and surface prevents algae and bacteria from adhering to the surface and forming biofilms. The swimming experience is more enjoyable and safer, reducing the risk of slipping or stepping on debris.
  • Dirt and debris may settle in areas that have less circulation. Brushing surfaces allows it to get to the skimmer.
  • By removing debris and preventing clogging, vacuuming helps maintain the efficiency of the pool filter and pump system, prolonging their lifespan.
  • A skimmer net can get any leaves or other debris that may fall into your pool before they settle to the bottom or fill the skimmer basket.

A robotic pool cleaner and brush ensure debris, dirt, and algae don’t settle and build up in the pool. A soft brush or cloth is effective for wiping away organic material without damaging the surface of a vinyl or fiberglass pool. A stainless steel brush is more effective and safe on a concrete pool. 

Maintaining Proper Water Level

Thursday Pools water level graphicRegardless of your pool type, maintaining the correct water level is a key aspect of pool care, ensuring a longer lifespan for the pool structure, preventing damage, and providing a safer and more enjoyable swimming environment.

  • Protects Pool Equipment: Proper water levels prevent pumps and skimmers from running dry, which can cause overheating, cavitation, or burnout. Maintaining the correct level avoids costly equipment repairs and replacements.
  • Optimizes Water Circulation: The appropriate water level ensures skimming function and efficient circulation
  • Improves Safety: Maintaining the correct water level reduces the risk of accidents, such as slipping on a wet deck due to splashing from overfilled pools.

Opening and Closing Your Pool

We recommend bringing in the pros for this one. Correctly opening and winterizing your pool is essential to prevent damage and ensure your pool starts the season off right and finishes in good shape for next year. 

Often discovered during pool opening and closing, electrical issues, missing, broken, or cracked drain covers, and equipment issues are best left to those professionals with the proper tools and experience to service them and keep warranties intact. 

Routinely performing other pool maintenance tasks, keeping your pool clean, and doing checks will help prepare your pool for closing, ensuring a smooth process with fewer hiccups in the future and allowing you to save time and money.

Prioritizing Water Balance

Whether you do it yourself or hire a pro, become as much of an expert as possible on your pool’s water chemistry. The more you educate yourself, the easier it will be to find a pool professional you can trust with your maintenance.

Improperly balanced pool water can lead to various types of damage to pool surfaces and structures, depending on the type of pool—vinyl, fiberglass, or gunite. Each type has specific vulnerabilities when exposed to unbalanced water chemistry. Here’s an overview of the potential damage for each:

Vinyl Pools

  • Fading and Discoloration: High chlorine levels or low pH can cause the vinyl liner to fade or become discolored over time.
  • Wrinkling and Stretching: High alkalinity or calcium hardness can cause the vinyl liner to wrinkle or stretch, leading to an uneven pool surface.
  • Brittleness and Cracking: Low pH can cause vinyl liners to become brittle and more prone to cracking and tearing, which may lead to costly repairs or replacement.
  • Algae Growth: Improper sanitizer levels (e.g., chlorine or bromine) can encourage algae growth, making the surface slippery and eventually staining the liner.

Gunite (Concrete) Pools

  • Surface Etching and Scaling: Low pH or low calcium hardness can lead to etching, where the plaster or surface material of the pool is worn away, creating a rough and pitted surface. Conversely, high pH and high calcium hardness can cause scaling, where calcium deposits form on the surface.
  • Staining: Imbalanced water chemistry, especially improper metal ion levels, can lead to staining. Metal ions like iron, copper, and manganese can cause stains of different colors (brown, green, black) on the plaster.
  • Cracking: Prolonged exposure to highly acidic or highly alkaline water can weaken the structural integrity of the plaster, causing it to crack or delaminate.
  • Algae Growth: Improper sanitizer levels can result in algae growth, leading to green or black spots on the pool surface, making it slippery and unsanitary.

Fiberglass Pools

  • Gel Coat Damage: Imbalanced pH, alkalinity, or calcium hardness can cause the gel coat of fiberglass pools to deteriorate, resulting in a dull or chalky appearance.
  • Staining and Discoloration: Low pH or improper sanitizer levels can cause metal ions (like copper or iron) to stain the surface, leading to unsightly yellow, brown, or green marks.

General Consequences for All Pool Types

  • Corrosion of Equipment: Unbalanced water, especially with low pH or high chlorine levels, can corrode metal parts in pool equipment like ladders, pumps, and heaters.
  • Increased Maintenance Costs: Damage from unbalanced water often requires expensive repairs, replacements, or resurfacing, increasing overall maintenance costs.
  • Poor Swimmer Comfort: Improperly balanced water can cause eye irritation, skin discomfort, and an unpleasant swimming experience.
  • Damage to Pool Surfaces: Maintaining the appropriate water chemistry balance helps protect pool surfaces and swimmers’ health in all pool types. Regular testing and adjustments are key to preventing these types of damage. 

Each pool type requires maintenance tasks to keep them in good condition. Be sure to take the time to read your pool manufacturer’s owner’s manual along with any equipment manuals that may come along with your pool project to have a complete understanding of these tasks. Learn as much as you can about pool maintenance and enlist the help of a pool maintenance pro near you to bridge the gap between what you can and can’t do yourself. Then, the only thing left to do is sit back, enjoy your crystal clear water … and take a swim!

 

When Do I Start Winter Pool Maintenance?

 

Thursday Pools Sandal Beach Entry with water featuresAs the air gets crisp, the leaves begin to fall, and stores start stocking Christmas decorations alongside Halloween candy, it’s impossible to ignore the signals that winter is just around the corner. For pool owners, this seasonal shift prompts an important question: when is the right time to start winter  pool maintenance? The answer depends largely on your local climate, whether you live in a region with harsh winters, mild winters, or something in between. Let’s dive into some essential considerations for winter pool maintenance for  fiberglass pools based on the climate where you live, helping you keep your pool in top shape as winter approaches.

Moderate Climates: Year-Round Pool Care Without Closing

In moderate climates, such as Sun Belt or coastal regions, pool owners have the luxury of keeping their pools open year-round. However, this doesn’t mean they can take a hands-off approach to winter maintenance. Even though freezing temperatures aren’t a concern, several important factors remain to consider as the weather cools.

 

  • Commit to Regular Maintenance: Just because you aren’t swimming as often during the winter doesn’t mean you can ignore the pool. You must still monitor and maintain your water balance even when the pool isn’t as frequently used. During the cooler months, the pool’s filter might not need as frequent backwashing as it does in the summer, but you will still need to maintain it. A dirty filter can reduce water flow, lead to cloudy water, and put undue stress on the pump.

 

  • Annual System Inspection: Developing a yearly maintenance checklist is an excellent idea if you don’t fully close the pool. The inspection helps catch minor issues before they become expensive repairs. Some items to include on your inspection list include checking pumps, filters, safety equipment, and pool covers.

 

  • Consider a Professional Service: If you’re using the pool less often, you might overlook minor issues that could develop over time. Pool owners in moderate climates may want to hire a professional maintenance service during the cooler months to ensure the pool remains in optimal condition. Hiring someone to maintain your pool can help prevent neglected problems from snowballing into costly repairs.

 

Semi-Cold Climates: Balancing the Risk of Delaying Pool Closure

In semi-cold climates like the southern Midwest or coastal regions flirting with freezing temperatures, pool maintenance becomes trickier. Pool owners in these areas often struggle with the decision of when to close their pools for the winter. Some years, temperatures might stay mild enough to keep the pool open longer, but delaying pool closure can be a gamble.

 

  • Consult a Professional: Keeping the pool open in semi-cold climates is like driving over the speed limit—you might not get caught, but you’re still taking a risk. A sudden freeze could catch you off guard, leading to cracked pipes, damaged equipment, and expensive repairs. Consult with a  local pool professional who understands the specific weather patterns in your region. They can advise on whether it’s safe to delay or if it’s time to start winterizing.

 

  • Protect Your Equipment: Even if you decide to keep the pool open later in the season, paying attention to your equipment is essential. Many newer pool systems come with freeze protection features, automatically turning the pump on when temperatures drop near freezing. While this feature can help during short cold snaps, it’s not a permanent solution. If your equipment doesn’t have freeze protection or if you experience prolonged freezing temperatures, the best solution is to winterize your pool completely.

Cold Climates: The Necessity of Earlier Pool Closure

Closing the pool is essential in regions with consistent freeze/thaw cycles, such as the northern U.S. If you wait too long, freezing temperatures can cause severe damage to your pool’s structure and equipment. Winterizing early and thoroughly is the best way to avoid costly repairs and ensure your pool stays in tip-top condition until spring.

 

  • Beat the 50-Degree Days: As temperatures drop, water inside your pool and plumbing can freeze, expand, and cause cracks in pipes, filters, and pumps. In cold climates, the general rule is to winterize the pool before temperatures consistently drop into the 50s (Fahrenheit) during the day.  Starting the closing process earlier allows plenty of time to prepare without racing against sudden drops in temperature.

 

  • A Thorough Closing Process: The key is a thorough closing process when preparing for winter in cold climates. It’s not just about covering the pool—it’s about balancing the water chemistry and ensuring all equipment is properly winterized. Taking the time to close the pool properly can save you from expensive repairs and a stressful opening process in the spring.

 

  • Plan Well for a Better Spring: Properly balancing the water before closing ensures it stays clean and clear through the winter, making spring maintenance much more manageable. You’ll spend less time cleaning and repairing and more time swimming.

Protect Your Investment, Enjoy the Holidays

Proper winter maintenance paves the way for a smooth and hassle-free spring opening. Consult your local pool professional to tailor your winter pool maintenance to your specific climate and address potential issues early. This way, you can relax and enjoy the holiday season and know that your pool is well-protected.

How to Close a Pool For Winter

HOW TO CLOSE A POOL FOR WINTER

closing poolThis too, shall pass. For those of us who live for the juxtaposition of the warm sun and luxurious cool pool water while living in a state with four seasons, waiting out the winter is a necessary evil. And making sure you are ready to enjoy your pool as soon as possible means closing your pool properly for the winter. If you live in a state with a freeze/thaw cycle, you may be wondering, “What does a pool closing include?” Some questions to consider when learning how to close a pool for winter may include:

  • How do you know when to close the pool for the winter (i.e. what month do you close a pool?
  • Why is winter water level maintenance important? 
  • How far down do you drain your pool for winter? How low should pool water be in winter? How high should pool water be in winter? And can you winterize the pool without draining?
  • What to put in the pool before closing? What chemicals do you need to close a pool for the winter? Do you need antifreeze to close the pool for winter? Should you shock the pool before closing?
  • What are the steps for closing a pool? How do you winterize a pool step by step? 

 

Let’s get to answering those questions!

How do you know when to close the pool for the winter? 

What month you close a pool for the winter depends on where you live and whether you have a pool heater or not. Many homeowners keep their pools open from Memorial Day to Labor Day, but if you have a pool heater, you could swim from April to October. You don’t want to close your pool too soon either because closing too early will increase the risk of algae growth. Fiberglass pools are naturally algae resistant, but vinyl liner and gunite pools are more prone to algae growth. So whether you will be swimming in your pool or not, for the health of the water you will be swimming in next season, make sure the water temperature is consistently below 65 degrees before stopping your filtration system and closing your pool.

Why is winter water level maintenance important? 

All inground pools have a common enemy. It’s called groundwater. Groundwater can wreak havoc on every type of pool if you allow its level to rise too close to the water level in your pool. In the winter months, while you’re busy watching football and baking Christmas cookies, you need to be sure that your water level underneath your winter cover doesn’t get out of whack with the groundwater around your pool, or you might be in for a world of hurt (and expense) when you pull that cover off in the spring. Here’s what might happen, based on the type of pool you have:

Vinyl Liner Pools: On a vinyl pool, if the water level inside the pool becomes lower than the water on the outside, the result is something we refer to as “floating the liner” which is not a good thing. It means that the liner is wrinkled and damaged beyond repair. A pool maintenance pro will have to drain the pool completely and replace the liner.

Fiberglass Pools: If the pressure of groundwater exceeds the pressure of the water inside your pool, your fiberglass pool shell might shift, crack, or float. Proper winterization and balancing inner vs outer water levels are the keys to protecting against these issues. Having additional add-ons to secure your fiberglass pool, like the Geo-Anchoring Pool System, can grant you additional support, as well. 

Gunite Pools: Groundwater pressure can cause cracks in gunite pools over the winter as well, resulting in the need for resurfacing. Ceramic tile along the waterline can also be adversely affected. The worst possible issue is flooding. If groundwater is not managed properly, a gunite pool can actually float.

How far down do you drain your pool for winter? 

Lowering your pool water can really cause some problems when Old Man Winter kicks it into high gear and Frosty the Snowman starts dancing across your pool cover. Every pool company has its own opinions and you’ll find conflicting information out there on the world wide web about the proper water level for winterization. 

When water freezes, it expands. The pressure of that expansion can crack your skimmer. Many pool professionals choose a Gizzmo, designed to absorb the pressure from ice expansion to prevent it from destroying the skimmer. It can be used in both above and inground pools

The Gizzmo has a plug on the top of it that is left open while air is blown from the pump area through the lines, clearing them of water. Most pool maintenance pros will then pour a gallon of antifreeze through the opening and into the piping to ensure the lines won’t freeze. Once the plug is screwed on tightly, water can’t get back into the piping.

We believe your best bet is to maintain your water level to just below the midway point of your skimmer. Doing so means you’re most likely to keep your water level in balance with groundwater throughout the freezing weather. One of the benefits of an automatic pool safety cover over a standard winter cover is the ease of being able to take a peek periodically at your water level.

What to put in the pool before closing 

If you live in a part of the country where winter temperatures are freezing or below freezing, you’ll need non-toxic antifreeze to protect your plumbing. Just like the summer, you should make sure your pool chemistry is balanced before winterizing.

Chemicals for winterizing your pool:

    • Shock. If your water chemistry is balanced before you close your pool there is no need to shock the pool at closing. During the winter months, your chlorine demand is much lower (if not zero) requiring little to no chlorine in your pool.  Generally the residual chlorine in your pool left over from the standard season is enough to combat algae growth through the fall if you do not close the pool until after the average temperatures are below 65 degrees.
    • Stain and scale treatment. If needed, add stain and scale treatment a day before closing. Adjusting the pool pH to 7.2-7.4 will prevent staining, scaling and algae growth, so you may need a pH increaser or reducer.
    • Winter algaecide. Winter algaecide is generally put in the pool at the time of closing.
  • Non-toxic antifreeze. This chemical is not actually put in the pool water. It’s used in the plumbing lines to prevent cracking and bursting.

 

What are the steps for closing a pool?

Whether you choose to do some (or all) of it yourself, or hire a pool professional to winterize your inground pool, there are certain steps you’ll want to take to ensure a happy opening in the spring.

Step 1: Clean your pool.

Remove all debris, brush the pool’s walls and vacuum.  

 

Step 2: Balance water chemistry.

Test the water and adjust with the proper chemicals to reach the following levels:

  • CHLORINE RESIDUAL – 1.0 TO 3.0 PPM
  • PH LEVEL – 7.2 TO 7.4
  • TOTAL ALKALINITY – 80 TO 120 PPM
  • CALCIUM HARDNESS – Less than 120 PPM (Note: if you own a fiberglass pool, be sure to avoid using Calcium Hypochlorite.)
  • CYANURIC ACID (CHLORINE STABILIZER) – 30 TO 50 PPM
  • METALS – 0 PPM
  • TDS – LESS THAN 1500 PPM (Note: if you have a salt system, maximum should be 1000 PPM above safe salt level)
  • SALT – 2700 TO 3400 PPM (Note: this is only necessary if using a salt generator)
  • LANGELIER SATURATION INDEX (-0.3 to +0.3). IDEAL IS 0. (Note: if you have a salt system, your saturation index should be between -0.2 and 0.2 to account for the additional corrosive characteristics of salt)

 

Step 3: Remove and store equipment/accessories.

Remove solar blankets and ladders from the pool, and store in a clean, dry area for winter. You’ll also want to remove and store skimmer baskets, wall fittings, floating lights, etc. 

 

Step 4: Achieve proper water level.

Using the filter pump or a submersible pump, you may need to lower the water level. Check your pool manufacturer’s manual or consult your pool dealer.

 

Step 5: Drain water from equipment.

Drain water from your pump, filter, heater and chlorinator by removing the drain plugs.  All water must be drained or blown out of your equipment so it doesn’t freeze, expand, and crack the equipment. If you have an inground pool, blow out the lines starting at the skimmer and then plug the lines at the pool using expansion plugs. As an additional safety measure, you may also use non-toxic antifreeze in the lines following manufacturer’s instructions.

Step 6: Cover the pool.

A winter safety cover that fits tightly is needed. You may have a mesh safety cover or solid (non-perforated) cover. Mesh will allow water to seep into the pool, and a non-perforated cover will require you to use a cover pump to remove rain water and snow melt. 

 

Knowing how to close a pool for winter doesn’t mean you need to do it yourself. It’s good to know what goes into closing a pool for winter so you can be sure that it’s being done correctly. Always follow manufacturer’s instructions as not doing so may result in problems and a voided warranty.

How to Avoid Common Pool Maintenance Mistakes

Whether you’re a new pool owner or have owned one for years, proper pool maintenance ensures your inground pool remains a sparkling oasis, extends its lifespan, and minimizes costly repairs. If you’re a fiberglass pool owner, you probably have heard that fiberglass pools are the lower maintenance option among pool types. However, lower maintenance does not mean no maintenance. The following tips can help you avoid the common mistakes people make when caring for their inground pool.

Video 1

 

Tip 1: Mind your Water Balance 

Failure to regularly monitor your pool’s water balance is probably the most common (and costly) mistake. Clear water does not inherently mean balanced water. Water can appear crystal clear while individual factors are in range but still out of balance. Unbalanced water can cause permanent damage to the inground pool shell. 

Test your water frequently. You’ll get the best accuracy with a high-quality test kit instead of test strips. Alternatively, you can take your water sample to a pool supply store for testing. It’s important to note that temperature affects water balance, so don’t leave your water sample in a hot car while you run errands. Take the sample directly to the store after collecting the water.  

We recommend using the Langelier Saturation Index (LSI) to balance your pool’s water chemistry. You can more easily do this via The Orenda Calculator™ on your smartphone or computer. For Thursday Pools’ fiberglass pools, pair these resources with our owner’s manual, which provides information, including our recommended water chemistry levels for comparison, what pool maintenance chemicals to avoid, and more.

 

Tip 2: Backwash Regularly

Many pool owners start the season off by backwashing their filters once per week. As the season progresses, they often aren’t as dedicated to it. Your filter plays an essential role in the continued enjoyment of your pool, and proper backwashing can reduce your pool maintenance costs in the long run. Some reasons you should backwash regularly include the following.

  • Efficiency: A clean filter is more effective at trapping debris. A clogged filter can’t perform efficiently, putting more strain on your pool pump and reducing its lifespan.
  • Water Quality: Regular backwashing helps maintain clear and sanitary pool water. A dirty filter can harbor bacteria and allow more contaminants to circulate into the pool.
  • Prevent Damage: Over time, excessive pressure from a dirty filter can cause damage to the pool’s filtration system. Regular backwashing helps prevent such issues.

It’s important to follow the specific guidelines provided by your filter’s manufacturer, as different types of filters (such as sand, DE, or cartridge) might have different needs and procedures for backwashing.

Backwashing too frequently can damage the filter, so use your pressure gauge reading to know when to backwash. Typically, you should backwash when the pressure gauge on the filter reaches 8-10 PSI (pounds per square inch) over the normal operating pressure. The standard operating pressure varies by filter, so knowing your baseline pressure when the filter is clean is essential.

 

Tip 3: Keep Up Your Water Level 

Maintaining the water level at the midpoint of the skimmer opening allows your pool’s systems to operate correctly. The skimmer is designed to pull debris from the pool’s surface before it sinks to the bottom of the pool, becoming harder to remove. If the water level is too high, the skimmer door may not work correctly, reducing its efficiency at collecting surface debris. If the water is too low, the skimmer may suck in air, which can lead to airlocks or damage the pool pump by causing it to run dry.

The proper water level also provides balanced circulation. The pool pump must pull water through the skimmer for filtration and chemical treatment. Maintaining the correct level helps ensure that the water circulates properly, distributes chemicals evenly, and keeps the temperature consistent throughout.

While you’d have to go lower than the skimmer, in fiberglass pools, a water level that drops too low can cause the fiberglass wall panels to warp or bulge from ground pressure. In extreme cases, if a fiberglass pool is emptied or the water level is significantly reduced, there is a risk that the pool can begin to “float” or shift out of position. This is due to groundwater pressure pushing against the relatively lightweight fiberglass structure, which can lead to major structural damage. 

 

Tip 4: Pay Attention to What You Put in Your Pool

Maintaining an inground pool involves using specific chemicals and tools that are compatible with its construction to ensure longevity and preserve the quality of the pool surface. Here’s a breakdown of what’s generally recommended and what should be avoided for fiberglass pools:

Good Chemicals for Fiberglass Pools

  1. pH Balancers: Keeping the pH level between 7.2 and 7.4 is crucial. To maintain this balance, use pH increasers (soda ash) or decreasers (muriatic acid or sodium bisulfate) are acceptable.
  1. Alkalinity Increasers: Baking soda (sodium bicarbonate) is commonly used to maintain total alkalinity, which should be kept between 80 and 120 ppm (parts per million) to stabilize pH levels.
  1. Calcium Hardness Increasers: Fiberglass pools require less calcium than concrete pools. The ideal range is less than 120 ppm. Use calcium chloride sparingly to adjust levels when needed.
  1. Chlorine: Keep total chlorine at 1 to 3 ppm. When your water is balanced to LSI, you will need less chlorine. High chlorine levels can damage the gelcoat finish over time.
  1. Non-Copper Algaecides: Avoid algaecides that contain copper, as they can stain the fiberglass. Look for polyquat algaecides, which are safe for fiberglass.

Harmful Chemicals for Fiberglass Pools

  1. Completely avoid Calcium Hypochlorite (Cal Hypo), as it can cause scaling and damage to the gelcoat.
  1. Avoid “shocking” the pool with high doses of chlorine, especially if not diluted properly, as it can lead to discoloration and damage to the fiberglass surface. 
  1. Copper-based algaecides can stain fiberglass surfaces, leading to blue-green stains that are difficult to remove.

Good Tools for Fiberglass Pools

  1. Soft-Bristle Brushes: Use soft nylon brushes to clean the pool’s sides and bottom. Fiberglass surfaces are relatively delicate, and using soft brushes will prevent scratches.
  1. Manual or Automatic Cleaners: Ensure that any automatic pool cleaner is suitable for fiberglass pools, typically those that do not require connection to the pool’s filtration system and operate gently.

Tools to Avoid in Fiberglass Pools

  1. Never use wire brushes or abrasive tools, as they can scratch and damage the gelcoat finish.
  1. Some heavy-duty vacuums designed for concrete pools can be too abrasive for fiberglass surfaces.

When maintaining a fiberglass pool, following the manufacturer’s specific recommendations for chemicals and cleaning tools is crucial.

 

Final Thoughts

Keep a regular pool maintenance schedule. As with many things in life, consistency is vital. Developing a regular, thorough, and routine maintenance schedule helps keep your pool in tip-top shape. Above all, the most significant maintenance mistake is not doing maintenance.

How To Choose the Best Pool Maintenance Professional

pool maintenance professionalThe greatest joys of owning a swimming pool include the hours of relaxation and swimming in crystal clear water. Proper water chemistry, regular cleaning and systems maintenance for your inground fiberglass pool is essential to keep your pool systems running smoothly and ensure a lifetime of worry-free pool enjoyment. It’s important to find a good pool maintenance professional near you who you can trust to assist you in keeping your pool in tip-top shape so you can sit back and enjoy your investment. They’ll also be your expert guide when it’s time to close your pool for the season. To ensure you’ve got the best person for the job, here’s a list of things to do as you’re searching for and evaluating pool maintenance pros in your area.

 

  1. Ask for recommendations. Ask your local pool installer and any friends or neighbors who have a swimming pool who they use for their swimming pool maintenance and what their experience has been. If your pool installer also happens to offer maintenance and annual opening and closing service, that’s a great place to start. Since they’re the ones most familiar with your pool, they’re the best qualified to service it.
  2. Do your research. Whether you’re hiring a general contractor, an attorney or a pool maintenance pro, it’s important to check references and reviews. Check out their Facebook pages as well as their reviews on Google and Yelp. Look for a quantity of ratings and an average score of at least 4 out of 5.
  3. Check out their website. Ask questions about their pricing and make sure you understand everything that’s included in their service packages. Does their opening and closing service include inspections of your pool’s systems? Do they have a service contract that might save you money over time?
  4. Weigh their experience. How long has their company been in business? Your inground swimming pool was a big investment–you want to entrust its care to someone who’s seen all the potential issues that might arise in terms of water balance, system troubleshooting and equipment repair and replacement. Most pool maintenance pros make more than 60 pool visits per week, so they’ve seen it all.
  5. Don’t take chances. Proper maintenance of your pool’s water chemistry and systems is essential to keep your pool in optimal condition for years to come. Don’t take a chance on a brand new company, or entrust your pool’s maintenance to someone who does it part-time or as an add-on service with other outdoor services unless you have gotten glowing references for them. If their pricing sounds too good to be true, it probably is.

 

pool maintenance professionalProper care of your pool, including weekly skimming, vacuuming, chemical adjustment and filter cleaning is essential to extend the life of your pool and will help you save operating costs over time. Weekly service from a pool maintenance pro is nice to have, but it isn’t enough to ensure correct water chemistry– that needs to be monitored more than just once a week. Every pool owner should know how to check their pool’s water chemistry and do it a couple of times during the week to make sure their pool maintenance pro is on track. Pool service companies sometimes over-chlorinate pools (to above 3 ppm) to be on the safe side, but over-chlorination is just as bad as under-chlorination, so pool owners should take the lead on monitoring water balance to ensure their water is healthy and safe for their families.

Your attention to your pool’s care, along with the services of an inground fiberglass pool maintenance pro will give you the peace of mind that you’ll be able to enjoy your pool for years to come. If you don’t currently have an inground fiberglass pool but are thinking of getting one, it might be time to stop dreaming and start swimming.

How Do I Start Preparing to Close My Inground Fiberglass Pool?

When temperatures consistently fall below 65 degrees, it’s time to host the final pool parties of the season and start preparing to close your fiberglass pool. Preparing adequately for closing ensures a smooth transition into winter and a more effortless spring opening. To put your best foot forward, observe the following  pool maintenance tasks to check off your list before winter.

Schedule Your Closing Date

Timing is crucial when it comes to pool closing. Contact your pool service company early to schedule a closing date. Taking a proactive approach to saving the date will help ensure you secure a spot before the busy closing season begins. Consider scheduling based on your climate and coordinate the date with other seasonal tasks to maximize efficiency. In colder climates, close the pool consistently before temperatures drop below freezing, typically between late September and mid-October. You may push closing to late October or early November in milder climates. If you live in an area with lots of falling leaves, you might want to close the pool earlier or use a cover to prevent debris buildup.

Properly balanced water will reduce the likelihood of algae growth and ensure cleaner water when you reopen the pool next year. Fiberglass pools are more algae-resistant than other types, thanks to their non-porous, smooth surface, which makes it harder for algae to attach and grow. However, if conditions are favorable, algae can still develop over winter, even in fiberglass pools. A stain and scale preventative product should also be added to protect the fiberglass surface during the off-season. When preparing for winterization:

  • Adjust the pH to a level between 7.2 and 7.4.
  • Adjust the alkalinity to 80 to 120 ppm.
  • Adjust the calcium hardness to below 120 ppm.
  • Add an algaecide according to product instructions.
  • Add stain and scale remover per product instructions.

Pool supply stores offer winterization kits that often include everything you need, including algaecide and stain and scale preventatives. However, many pool owners enlist the help of a professional service to test their chemistry, adjust the water’s chemical levels, and complete other winter pool maintenance tasks.

Gather Your Equipment

Take the time to inspect all necessary winterization equipment, including winter plugs, skimmers, and maintenance tools. For easy access, items should be stored in one location, such as a garage or shed, to minimize time spent searching for tools. It’s also a great time to inspect all the equipment you’ll use upon opening your pool in the spring. If anything needs repair or replacing, handle it before closing so it won’t hinder your ability to enjoy your pool when the swim season comes around again.

Clean the Pool Thoroughly

Before closing your pool, it’s important to clean it thoroughly. Vacuum the pool to remove dirt and debris, scrub the water line, and backwash the filter (or remove and clean the cartridge filter if you have one). A clean pool is vital for closing as it will help you and the professionals enjoy a smoother closing process. It will also ensure the water is cleaner when you open next season.

Invest in a Quality Pool Cover

A reliable winter pool cover will help maintain the integrity of your pool during the off-season. Some pool cover options include:

  • Solid Vinyl Covers with a Pump System: These covers are popular for winterizing because they are highly effective at blocking sunlight and preventing algae growth. They keep out debris and water. Look for covers with a built-in pump system to remove accumulated water on top.
  • Mesh Safety Covers: Mesh safety covers are durable and allow rainwater and melted snow to drain through, which can be convenient. However, they let some sunlight through, so they’re not ideal in areas prone to algae. If you choose a mesh cover, opt for one with tightly woven mesh to limit light exposure as much as possible.
  • Hybrid Covers: These combine the benefits of solid and mesh covers, providing more durability and sunlight blocking while allowing water to drain. They can be an excellent compromise for easy maintenance while reducing algae risk.
  • Winter Covers with Air Pillows (for Freezing Climates): Air pillows placed under a solid or hybrid cover help prevent ice from damaging the pool walls by relieving pressure from expanding ice. This combination is especially beneficial if you live in a colder climate with freezing winters.
  • Automatic Pool Covers: Automatic pool covers are durable, secure, and easy to use, providing a tight seal that keeps out sunlight and debris. They provide convenient year-round protection, are more expensive, and require a power source. However, they make checking your water levels and chemistry easier during the winter months and provide nearly instant safety in any season.

Store Pool Accessories Properly

Gather and clean all pool toys, floats, and accessories as you prepare to close. Deflate rafts and thoroughly wash them before storing them in a dry location, such as a garage or pool house. Additionally, according to manufacturer or pool professional advice, protect your diving board, slide, handrails, and ladders. For unremovable items, consider applying a protective wax for winter storage.

Safely Store Chemicals

Store any unused pool chemicals securely and safely to prevent accidents. It’s important to ensure that all chemical containers are tightly sealed to avoid leaks and spills. Store these containers in a well-ventilated area, away from heat sources such as furnaces or direct sunlight, as excessive heat can compromise the integrity of the chemicals. Additionally, store different types of chemicals separately. For instance, keep chlorine and shock treatments away from acids to prevent dangerous reactions. Consider organizing your chemicals by categorizing them, labeling each container clearly, and maintaining an inventory to track what you have. This organized approach enhances safety and makes it easier to find the chemicals.

Cherish the Days

As you prepare to tuck your pool away for winter, take a moment to look back on the memories you made this season. From lazy afternoons and lively pool parties to quiet swims at sunset, every splash holds a story worth sharing. Why not revisit the photos and videos you’ve captured, reliving those sun-soaked days. Let the anticipation of next season build, knowing that your winterizing preparations set the stage for more unforgettable poolside moments when warmer days return.

Ask the General: How to Backwash a Sand Filter in My Fiberglass Pool?

Dear General;How Do I Backwash the Sand Filter in My Fiberglass Pool

I love my fiberglass pool, but here’s my problem. I don’t understand how to backwash a sand filter. I keep my pool clean and add all the chemicals I’m supposed to, when I’m supposed to. What is backwashing, and WHY do I have to do it to my sand filter?

Signed;

Bad Backwasher in Bainbridge

 

Dear Bad Backwasher:

Funny you should mention bad back(washing), as I’m writing this with my feet propped up and an ice pack on my back. I’d like to tell you that I pulled something doing a triple Lindy off the high board into the pool, but the truth is, I hurt my back bending over to tie my shoe. The General’s not as young and spry as he used to be. My point is, much like tying a shoe, the simplest things can cause a lot of pain. Which brings us to your learning how to backwash a sand filter.

If you want to talk about pain (which clearly I do because I’m in it), let’s talk about the pain of paying for extra chemicals to clear up a pool that got cloudy due to poor circulation. Why might you have a clogged filter? Failure to backwash your sand filter. You can religiously add chlorine to the chlorinator, check its settings, sweep down the walls of the pool, empty skimmer baskets, vacuum dirt and debris from main drains, do water tests, maintain the correct water level and clean the steps going into the pool, but if you forget about the cleaning the filter, your pool water is going to get cloudy. Nobody wants that.

Pool filters

There are three available types of pool filters: sand, diatomaceous earth (DE) and cartridge. Sand filters are the oldest form of swimming pool filtration. They are particularly good at catching microscopic particles like algae and phosphates and need to be backwashed about once a week. Sand filters require very little maintenance, but the sand must be replaced about once every 2-4 years.

What is backwashing?

Backwashing simply means running water backwards through the filter to lift the dirt off the top layer of sand. Your pool pump moves the water into the top of the filter and then evenly distributes it across the surface area of the sand bed. Then, it pushes the water to the bottom of the filter. By the end of the process, the water has washed the debris out of your filter, readying it to effectively filter your pool water again.

How to backwash your sand filter

Backwash process

Things to watch out for when you’re backwashing

  • Sand in your pool.  If you notice sand in your pool during or after backwashing, you might have cracked of laterals or piping inside the filter or you might also have too much sand in the filter. The space from the top of the filter to the beginning of the sand line is called “free board.” This space is essential to allow you to backwash without having sand come out of the filter.
  • Too much of a good thing. While backwashing is essential, it is possible to do too much of a good thing. Turn the hose off as soon as your water runs clear. Prolonged backwashing of your sand filter can cause “channeling.” This is a situation in which channels develop down the sides inside the filter. When this happens, water will be able to bypass the sand altogether and this will essentially defeat the whole purpose of your sand filter.

As with all aspects of your pool’s operation and maintenance, I recommend reading the instructions on how to backwash a sand filter that are typically found on the filter, as each model varies slightly. Your filter and your pump are the backbones of your pool. It’s important to pay equal attention to both of them. A failure of either will cause you pain (and, of course, money.)

Speaking of pain, it’s time for me to grab a float, walk SLOWLY AND CAREFULLY into my pool, relax, and rehabilitate my own back.

Until next time–

The General

 

Who is The General?

The man, the myth, the legend….we just call him The General. His organized, systematic approach to pool installations over the years had his crew members calling him “The General” and it stuck. The General has over 30 years’ experience in the pool and spa industry, working for one of Pool and Spa News’ Top 50 Pool Builders.”

Over that time, he designed, sold, project-managed and installed over a thousand inground swimming pools. As a pool owner himself, he’s the perfect authority to give you the inside scoop, with amazing tips and tricks to make pool ownership a breeze!

Properly Backfilling and Installing Your Fiberglass Pool’s Tanning Ledge

Inground  fiberglass swimming pools featuring built-in tanning ledges are, in a word, heaven. They allow swimmers to lounge in just enough water to keep cool while still soaking up the sun’s rays. Whether you’re in tanning ledge chairs or sitting on the ledge itself, they truly offer the best of both worlds. Built-in tanning ledges are also great for young  children and family pets. Whether they’re confident swimmers or not, all can enjoy the water and relax on the wading area’s shallow ledge. Add a  bubbler or other fun water feature to make a little splash, and you have the perfect backyard pool oasis. However, for all the enjoyment built-in tanning ledges can bring to fiberglass pool owners, proper installation is essential for long-lasting enjoyment.

Properly backfilling under and around a fiberglass pool shell’s tanning ledge can be difficult. The tight spaces and voids the ledge creates at transition areas are hard to reach, and the varying grades needed for excavation add time, money, and potential headaches to the pool-building process. If the pool builder doesn’t backfill and install it correctly, a tanning ledge can develop a hollow or fragile feeling under your feet. Over time, the backfill material can shift and settle under the tanning ledge, leaving voids between the pool shell and the ground below.

How can you be sure the ledge in your tanning ledge pool will feel sturdy and as durable as the rest of the fiberglass shell? Ensure the installer is experienced with similar pool designs and understands proper tanning ledge installation. Various pool builders may have differing opinions about the best way to backfill underneath a tanning ledge, but some of the most reliable strategies include:

  • Enlist multiple resources. Getting the backfill material into every nook and cranny under a built-in tanning ledge is difficult, so pool builders must get creative. Your dealer might use various tools to force backfill material into tight spaces or have the crew’s smallest member squeeze into the small spaces to move material by hand.
  • Use a suitable backfill material. A clean chip stone that is three-eighths to three-quarters inch in size will make it easier for pool builders to move around and get into the tight spaces under the tanning ledge. 
  • Use a flowable fill. Flowable fill is a self-compacting, low-strength material with a flowable consistency. If the pool builder has experience with flowable fill, it can be a good option for reaching those hard-to-reach areas under the tanning ledge. However, flowable fill is non-permeable, and dealers must account for groundwater and ensure proper drainage.
  • Excavate the ledge separately. When excavating the hole for your pool, installers should treat the tanning ledge as a separate pool bottom area with its own measurements. It’s also vital to consider freeze depths in your area. The backfill material should be at least as deep as your frost line.
  • Install Piers. Another option for supporting built-in tanning ledges is for the pool builder to install “piers” along the outside edges of the ledge. The process involves excavating to a point where the builder can stack level blocks forming a pier. They then level the blocks front to back and side to side before lowering the pool onto the pier. Piers should only add complementary support and leveling. Installers must still pack the entire underside of the ledge with backfill material.

If some of these strategies sound a little less sophisticated, it’s because they are. For years, they were the only sound options available to pool builders to support the tanning ledges. Not anymore.

Meet The Thursday Pools Backfill Eliminator® 

The Backfill Eliminator® (US Patent 10,450, 766) is an exclusive Thursday Pools innovation that makes installing a tanning ledge easier, faster, and cost-effective with a stronger and more durable ledge over time. Pool builders used to consistently struggle with the aforementioned strategies for installing built-in tanning ledges, but purchasing a Backfill Eliminator®  eliminates the need for older and near-obsolete strategies.

 

tanning ledge backfill eliminator

Thursday Pools engineers designed the Backfill Eliminator® to integrate into the bottom of your pool, allowing for a sturdy and level installation. It provides structural support to the tanning ledge and one continuous slope for excavation, making it as easy to install as any other fiberglass pool design.

The Backfill Eliminator® also allows groundwater to flow freely under your pool, eliminating the possibility of stagnant water accumulating underneath or excess groundwater lifting the pool. The device even includes a convenient access point to help builders reach essential plumbing components. The Backfill Eliminator® can work in tandem with Thursday Pools’ Geo-Anchoring Pool System, which helps homeowners secure their investment by providing extra strength to the pool structure. 

Built-in features like a welcoming and relaxing tanning ledge are great for many types of people and pool activities, especially activities of the relaxing-in-a-lounger variety. Many fiberglass pool manufacturers provide pool specification sheets for their designs. If you ever need to know your current (or future) pool’s tanning ledge depth or size to figure out what other pool accessories will work in the unique space, contact a local dealer or the shell manufacturer directly. Are you ready to get in touch with a local independent dealer about your favorite Thursday Pools design with a tanning ledge?  Reach out today to schedule a design consultation with a dealer in your area to learn more!

 

Ask The General: How Do You Prime the Pool Pump?

The General tells you how to prime the pool pump Dear General;

Everyone keeps telling me I have to prime the pump for my fiberglass pool. That’s all well and good. My question to you is, how in the heck am I supposed to do it? And how do I know when it’s done?

Signed– In a Perplexed Pool Pump Priming Pickle in Peru.

Dear Perplexed;

No need to be in a pool priming pickle. Honestly, I get this question all the time. You’re not alone. Let’s break this down together.

First of all… Let’s take a look at how water circulation systems work.

The key, believe it or not, is atmospheric pressure. There are approximately 14 pounds of air pushing down on all of us all the time. That means there’s the same amount of pressure pushing down on the surface of your fiberglass pool water. Your pool pump has a something called an “impeller” that creates a low pressure area by spinning. It pulls water into it, and pumps it back into the pool.

A “closed system” means NO AIR

Here’s the secret that explains it all. Your pool needs to be a CLOSED system to operate. Your pump, all your piping and everything that’s involved with the transferring of water from the pool into the pump, to the filter and back into the pool has to be full of water with NO AIR. A closed system is one that has NO AIR in it. All you have to do is stop and think “Where can air be introduced into the system?” (Did I mention NO AIR?)  

Pool Pump Priming Checklist

Once we’re sure we have a closed system, check the following things:

  1. Check your water level. If there’s air coming through the skimmers (Remember NO AIR?) it will make you lose prime, so you need to ensure you have proper water levels. Normally, the ideal water level is about halfway up the middle of your fiberglass pool’s skimmer or a little higher.
  2. Check the skimmer’s “weir door”. The weir door is the little flapper in the mouth of the skimmer. If you see a clogged, full skimmer basket, clean it out.
  3. Clear debris from main drain and check the piping at the equipment area. Make sure there is nothing that can allow air in, even things like the cap on the pipe used for winterization. It may need to be re-Teflon taped. Unions and ball valves may also need to be tightened.
  4. Check the pump itself. Make sure pump is turned off, then take the lid off the pump basket, clean the pump basket and return it to the pump. Fill the basket with water and securely close the lid on the pump. Open the ball valves in front of the pump. (Before turning the pump on, I normally check the rest of the system to make sure the water can run through it.)
  5. Check the valves. Make sure the valves are in the positions recommended by the manufacturer (usually instructions are on the filter.) Some filters (such as cartridge filters) don’t have veriflow valves, but they all have starting instructions. If you can’t find the instructions, look online. 

Show time!

Once you’ve made sure everything is tightened, the return eyeballs (inlets) can allow water into your fiberglass pool, the drain plugs are secure, and the pump basket has been filled, it’s show time. Flip the pump switch. Did it start? If no, don’t despair, and don’t say bad words. It’s going to be okay.

Try this little trick:

Turn the switch off and check the GFI breaker in the electrical panel that controls the pump. Is it tripped? Flip the switch again. Are you in business now? Hallelujah!

Time to enjoy!

Now follow the manufacturer’s directions to put the system in “filter” mode. You will see the filter gauge rise to normal pressure. Water will be flowing into the pool, water will be spinning over the weir door into a full skimmer, no air will be coming out of the inlets, the pump basket will be clear of air, and you will have successfully primed the pool pump.

Now it’s time to grab a float and your beverage of choice and enjoy the pool.

Until next time…

The General

 

Who is The General?

The man, the myth, the legend….we just call him The General. His organized, systematic approach to pool installations over the years had his crew members calling him “The General” and it stuck. The General has over 30 years’ experience in the pool and spa industry, working for one of Pool and Spa News’ Top 50 Pool Builders.”

Over that time, he designed, sold, project-managed and installed over a thousand inground swimming pools. As a pool owner himself, he’s the perfect authority to give you the inside scoop, with amazing tips and tricks to make pool ownership a breeze!