How to Clean and Care For an Automatic Pool Cover

Normally, pool owners are mainly concerned with cleaning and maintaining their pool, but what about the automatic pool cover? Just as your pool requires care, so does your pool cover. I am going to list the most important tips to successfully care for and clean your automatic pool cover.

What To Check On Your Automatic Pool Cover And Related Moving Parts

With a minimum amount of effort, you can extend the life of your pool cover, the motor, and other components. The housing should be cleaned out at least once per year. Make sure leaves and other debris don’t prevent water from draining out of the housing.

Periodically inspect the track to be sure all screws are secure if they become loose simply tighten with a screwdriver. Spray water in the track channel a couple of times a year to remove the potential buildup of leaves or other debris.

Throughout the year inspect the vinyl fabric for signs of wear brought on by pool chemicals, age, extreme temperature, and the sun.
Should the vinyl become brittle its ability to provide protection may be compromised and should be replaced.

it’s important to inspect the vinyl for holes or tears which can allow water to seep up from the pool and present a safety hazard. Patch kits are available from your dealer.

if the stitching begins to fray the strength of the cover may be compromised and this should be repaired or replaced by your dealer.

To prevent premature aging of the vinyl the cover should remain open for at least two hours after you add chemicals to your pool. This will allow the chemicals and chemical gases to disperse.

How To Clean Your Automatic Pool Cover

For owners who wish to clean their cover, the operation is quite simple. First, make sure the pool water level is at the center of the skimmer opening. Start by placing the bilge pump on the cover. Next, spray water into the tail end of the vinyl and add a mild diluted cleaner.

Then gently clean a five-foot section of the vinyl with your pool brush. Open the cover five feet and repeat the process allowing the bilge pump to remove the standing dirty water. it’s important to follow these simple steps at the beginning of the pool season or whenever you need to clean the cover.

Automatic pool covers must be cleaned every 3-6 months. Spray all the reel components with a Teflon based lubricant once every season to make sure components are running smoothly. This will prevent wear on the moving parts.

At this point, you should be ready for the rest of your pool opening procedures. At the end of the pool season, a few precautions are important to protect your cover and your pool.

First, close the cover completely and put the bilge pump on the cover. Next, make sure that at least 70% of the vinyl is resting on the water. Anything less than 70% may damage the vinyl. if during the offseason support of the vinyl becomes less than 70% add additional water to the pool.

On top track systems, water bags can be added for additional protection.

Safety Aspects To Consider When Using Your Automatic Pool Cover

Your backyard pool is a great place to play, exercise, entertain, and relax but it’s also a place where safety must come first. Responsible pool owners know that real dangers exist.

  • From horseplay or other unsafe behavior, but a very real danger is present around any body of water.
  • The cover should only be operated by an adult or owner.
  • Keep children away from the cover. Children or objects, cannot be under the cover.
  • Do not walk on the cover except for emergency purposes.
  • Only keep the bilge pump on the cover. Set the bilge pump up for proper use whenever the cover is closed.
  • Always keep the water pumped off the cover to avoid a drowning risk. Even a small amount of water is a hazard, especially if someone walks or falls onto the cover vinyl. The water will collect around the person and may present a drowning risk.
  • When swimming, keep the bilge pump away from the pool area and always keep all electrical cords away as well.
  • You should inspect the cover frequently for signs of deterioration, rips, or tears.
  • Do not close the cover until all swimmer’s toys, towels, ladders, and other objects are out of the pool.
  • Never leave the pool cover partially opened.
  • Always make sure you can see the entire pool and pool cover while you’re activating the controllers to open or close the pool cover.
  • Always remove the key from the key switch when the pool is not in use.

Questions and Answers Regarding Automatic Pool Cover Problems

Can I walk on the cover? While you can walk on the cover we recommend doing so only in an emergency.

Is the cover too big? Many new cover owners question the extra vinyl fabric that’s evident in the cover. This is actually key to the effect of the operation of the cover. At first new covers appear to be wrinkled or oversized but this is normal and the wrinkles may smooth out over time.


If I drain my pool or the water level gets low should I close the cover? Never cover your pool if drained or anytime the water level is any more than 6 inches below the skimmer. Doing so could cause damage to the system. Fill the pool to a level where the water supports the cover.

The cover is opening or closing crooked what should I do? While it’s normal for a cover to open or close up to 2 inches off its normal position appearing slightly crooked as it moves. More severe misalignment should be addressed by a trained technician.

Should I leave the bilge pump on the cover at all times? The bilge pump should be left on the cover whenever the cover is closed. The only exception is during severe winter conditions when it’s too cold to melt the ice and snow on the cover. Remove the pump off and place it in a warm area. Then place the pump back on when the ice begins melting.

I hear a popping noise when I open and close the cover is this normal? Sometimes the ropes make a popping noise when rolling on to the Rope reels this is normal and not an indication of any trouble.

The pool cover does not open or close when I activate the controller what should I check? Check if the motor is not turning or the cover is not moving you may need to reset your GFCI outlet. Turn the breaker off then turn it back on. If the cover is still not operating call your installation company.

Water appears on my cover when it has not rained in days? Your cover may have a hole over the water and needs to be patched.

The cover stops halfway open or closed what should I do? If your cover stops Midway the tracks might have dirt or debris inside and you should clean them out with a firm stream of water from your hose. Another possibility is that the ropes have become tangled around the rope reel in the housing. Lift the lid to check the reels and see if they appear tangled. If they are you must first turn off the power to the system and then you can carefully attempt to untangle them yourself. Another situation that may cause a cover to stop Midway is that there may be too much water remaining on the cover. Pump the water off with the bilge pump and then attempt to open the cover.

The key switch indicator light is blinking red? A blinking red light indicates that the cover has stopped under stress. There might be water on top of the cover. There could be an object blocking the cover or the cover could be running crooked and needs adjustment.

The cover is completely open and will not close? It may be that the cover has opened too far and come out of the track. You can also check the green indicator light on your controller. If the light is not on you do not have power to the system and you should check your electrical system.

The bilge pump is not pumping off the water? It may be that the pump’s automatic shutoff is malfunctioning or there’s another problem. Check your bilge pump owner’s manual for troubleshooting tips. The pump may need to be repaired or replaced because a properly functioning pump is critical to the safety and operation of every pool cover.

I recommend you purchase a backup pump to always have on hand in the event of problems with your primary pump.

I hope that this information is helpful to you for having a trouble-free automatic pool cover.

How To Clean A Roller Shutter Pool Cover

The maintenance of your pool involves the regular cleaning of the water and the various components of your pool. The roller shutter, like other types of cover, offers the advantage of making your task easier by protecting your pool from pollution.

You then only use the dip net once or twice a week to remove dead leaves and twigs that fell into the pool during your swimming sessions. You can also reduce the amount of chlorine and disinfectants that help maintain water quality since the pool is fully covered.

However, you must also clean the pool cover at least twice a year. Impurities and waste accumulate there and can pollute your pool if you are not careful. The cleaning operation mainly consists of removing dirt from the blades as well as debris that is trapped between the flap joints.

Also, know that these impurities will roll out with the shutter when it opens and there is a good chance that they will end up at the bottom of your pool. This debris can also damage the cover blades if it is not removed.

Cleaning the Solid Roller shutter Pool Cover in the Correct Sequence

In order for your pool cover to be properly maintained, you must adopt the right sequence. It is also necessary to clean in stages in order to preserve the quality of the blades and of the other components of the cover. You must start by dismantling the grating in the case of a submerged pit since this equipment protects the pit.

After removing this accessory, you can clean the shutter blades one by one by rolling them out little by little. This then allows you to brush the blades using a wall brush and detergent.

Once you have done all the blades, keep the shutter closed and spray with a strong jet of water to remove the detergent. You can take the opportunity to completely clean the submerged pit by removing large waste with a pool net and the others using a manual vacuum cleaner.

The opening slot is quite small and is not often suitable for the use of a pool robot. In case you have opted for solid blades, then you must use a high temperature and high-pressure cleaner.

You have the option of using a detergent for the swimming pool in order to remove all stubborn stains and so that the swimming pool cover can regain its shine. If your cover is not made from solid blades, a simple garden hose is more than enough.

Also, use a sponge soaked in a cleaning product dedicated to cleaning the pool cover to keep everything clean. However, read the labels carefully since the use of abrasive products is not recommended. They risk damaging the boards which then lose their insulating capacity. Repeat all these steps before winterizing your pool in late fall or early winter.

You must then clean your pool cover again before summer. These cleaning sessions allow you, to check that the automatic or manual system of your cover is working properly.

Alternative Techniques to Conventional Roller Shutter Cleaning

The roller shutter is a real nest for bacteria and microorganisms, hence the need to clean it regularly. Even if this cleaning is difficult or time-consuming, it is necessary to do it regularly to guarantee the quality of the water in your pool and the preservation of an ideal temperature which is around 28 ° C.

Step 1: Keep the shutter in the closed position so that you can more easily access the area behind it, where lots of dirt gets stored. Sometimes you need to use a shovel and a brush to remove any dead leaf debris and other impurities.

Step 2: Draining the water circuit guarantees that this waste is not likely to end up in your pool, otherwise beware of its pollution. It is better to pay for a few cubic meters of water to fill the pool than to invest in expensive disinfectants. All the more so if the debris is too great, you may need to empty the pool before thoroughly cleaning it and refilling it.

Step 3: Empty your filter tank regularly which fills up quickly because of the draining of the water circuit of your pool. Stop this operation only when the water coming out is perfectly clear.

Step 4: Clean your filter using a powerful jet of water, since debris will attach to it when cleaning the pool cover. Do not stop cleaning until you see the bottom of the filters.

Step 5: Close the hatches that contain the shutter or the gratings if there is a submerged pit. Also, close the drain valve before unwinding your roller shutter.

Step 6: Pour the required amount of chlorine into the pool for a shock treatment in order to disinfect your pool properly.

Step 7: If there is debris at the bottom of the pool, turn on your automatic vacuum cleaner to remove it. You can also use a manual vacuum cleaner if you do not have a pool robot.

Step 8: Clean your filters again to remove any debris attached to them before the filtration pump is started.

The Advantages of Cleaning a Solid Roller Shutter Pool Cover

Cleaning the roller shutter of your swimming pool has many significant advantages. As you can do it yourself, you save money.

You can also save money on the time you spend on the daily maintenance of your pool such as emptying the skimmer. You also don’t have to use too many pool chemicals to guarantee clean, healthy water. Debris on the roller shutter is unlikely to spill into the pool if you thoroughly clean it every six months and if you remove dirt on the surface of the cover at least once a week.

How Do Variable Speed Pool Pumps Work?

I have been wondering if I should change my conventional single speed pool pump to a variable speed pump when mine gives trouble or packs up.

I have done some research and found out how a variable speed pool pump works. In this article, I will be sharing my findings and the advantages of these pumps with you.

A variable speed pool pump works by sensing water pressure on the outlet side of the pump and it electronically alters the speed of the pump to keep the outlet pressure constant. This type of pump stops pressure and flow spikes. 

With a conventional single-speed pool pump, the pump works at a max rpm all the time. The pressure and flow cannot be altered unless the outlet pipe size is changed. Therefore it uses max power all the time.

A pool pump has an electric motor that spins an impeller which in turn pumps water through the pool system. The variable speed pool pumps electric motor design is different in that it has an electronic switching and control system. With a variable speed pool pump, a pressure sensor is mounted on the outlet of the pump, and this pressure sensor measures the operating pressure of the pump. A VSD controller ( Variable Speed Motor Driver) which is mounted on top of the electric motor can be manually set so that it keeps the outlet pressure of the pump constant, no matter what flow is required out of the pump.

If the outlet pressure is set at 10PSI. The pump will alter its speed, either speed up or slow down according to the flow demands of the water on the pump. If you are just circulating the pool water the pump speed will be slow. When the demand is greater like when you are using the robotic pool cleaner, the pump speed will be faster.

This means that instead of the motor using 6 Amps, it will be using possibly 2 Amps to do the work and overtime this saves a lot of money.

Do Variable Speed Pool Pumps Really Save You Money?

Yes, they do. With a variable speed pool pump, there is a balance between economy and performance. If you purchase a variable speed pool pump, you will spend about $159.87 per year on your energy bill. That is an annual saving of $549.99 from the conventional single-speed pump. The cost difference between a standard 2.0 HP pump and a variable speed pump is about $750.00. You will recover this cost difference in about 16 months. In total will save 40 – 50% on your pool energy costs.

What Are The Advantages Of Variable Speed Pool Pumps

These pumps have four key benefits. They offer huge energy savings, better filtration for pool water, they are quieter in operation than other conventional pumps. There is less stress on other pool equipment when the pump is running at low speeds.

How Long Do Variable Speed Pool Pumps Last?

Variable speed pool pump motors last at least 6-8 years, often longer. Variable speed pool pumps have magnetic drive motors. These motors create less friction and offer higher energy efficiency compared to their older counterparts, which have copper winding motors.

Which Is The Best Variable Speed Pool Pump?

  1. The Hayward SP2610X15: The Best Pool Pump For A Stable Flow Rate.
  2. The Pentair 011018 IntelliFlo: The Best Variable Speed Pool Pump For Horsepower.
  3. The Hayward SP2302VSP Max-Flo: The Best Variable Speed Pool Pump For Easy Installation.
  4. The Hayward SP3400VSP EcoStar: The Best Variable Speed Pool Pump For Debris.
  5.  The Hayward SP15932S Power-Flo Matrix: The Best Two-Speed Pool Pump For Reduced Maintenance.

8 Pool Safety Rules For Children

It is really nice for the family and friends to enjoy a swim in the pool. But, if you’ve got small kids around, you need to enforce a couple of safety precautions to make sure that youngsters can enjoy their swim. Parents should keep an eye out when kids are swimming.

An inch of water is all it takes for a small child to drown. Many people believe that they’re going to hear a splashing sound or cry for help, but that’s not the case.

Here Are 8 Safety Tips For Keeping Children Safe In A Pool.

1. There should be fencing all around the pool area for protection. Four-Sided fencing around the pool will help to prevent the drowning of children. It should be at least four feet high. The fencing should have a self-closing, self-latching gate.

2. The area around the pool should be cleaned immediately after each use. Immediately remove any floating toys that are still in the water. Such toys can attract the attention of children and a child may reach to grab it and can fall in the pool unexpectedly.

3. Children should be strictly told to follow the safety rules that you have set. Pool decks can be wet and slippery. Many children feel excited close to the pool edge. Therefore, they should not be allowed to run in any situation. They should walk slowly and carefully. Children should be instructed to obey “no diving” rules in the shallow end.

4. Children should be allowed to enter the pool as long as they know how to swim. Send your child to swimming lessons. Children can start swim lessons at around three years old. Even if the child knows how to swim. Very young children should be within arm’s length of an adult. Never leave a child or children alone in the pool.

5. Safety equipment should be available close by if required. If you have a large pool, a rescue pole or “life hooks” are also good things to have on hand.

6. If you are not using the pool, cover it with a rigid safety cover. Even during the swimming season, It is better that the pool stay’s covered when not in use. The pool cover should fit securely over the pool’s entire surface.

7. If your child is swimming in an inflatable pool, you must empty it after each use. Never think that a child cannot drown in a blow-up pool. Small children don’t have the upper body strength to lift themselves and may drown easily by slipping over the soft side of an inflatable pool.

8. Never rely on floaters, water wings, inner tubes or noodles. You should only use flotation devices labeled “Coast Guard approved”. Drowning is always preventable. Whenever you’re taking your child near the pool or within the pool, you must be able to reach out and grab your child at all times.

What Is A Pool Skimmer? How does A Pool Skimmer Work?

There are essentially two types of pool skimmers. One type has a net attached with a long pole which is used to manually remove leaves and debris out of a pool. The other type is built-in as part of the pool filtering system to remove debris and leaves.

They are both important and have similar functions for keeping a swimming pool clean. I will be explaining how they work, how to use them and how to care for them.

What Is A Pool Skimmer?

Pool skimmers are rectangular plastic inserts, that fit into the upper side of a pool wall. They contain a weir and a basket which has lots of small holes in it. A pool skimmer stops and traps large leaves and debris from reaching the pool pump and filter. This is the first stage of filtering in a swimming pool filtering system.

Pool Skimmer


On top of the skimmer, there is a hatch or lid where you can gain access to the basket. Within the skimmer on top of the basket, there is a detachable lid with a hole in the middle that allows you to connect a hose for manual and automatic vacuuming.


The other type of pool skimmer is the one that floats and moves around on top of the water and has the same function as the built-in pool skimmer.

How Does A Pool Skimmer Work?

A Pool Skimmer is the starting point of a swimming pool filtration and circulation system. There is a suction pipe located at the bottom of the skimmer underneath the basket. When the pool pump is on the pool water is drawn through the skimmer towards the pool pump causing a suction.

The skimmer uses a mechanical skimming action that works with the pool water level and the flow of water over the weir. Water is drawn into the skimmer which moves over the skimmer flap (weir). The skimmer flap (weir) adjusts its self automatically according to the pool water level and suction of the water. As the water moves over the weir the speed of the water increases causing a skimming action, thus pulling any debris and leaves with it.

Diagram Of How A Pool Skimmer Works

From there the water passes through the basket on its way to the pump and filter. The basket has holes in it which trap leaves and debris that are bigger than the holes of the basket.

This is the pool filtering system’s first line of defense to trap bigger debris before it enters the pump and main filter. Therefore allowing the main filter to filter only the smaller contaminants from the water. Without a pool skimmer, the main filter will get blocked very quickly.

When the pool pump is off, the skimmer flap (weir) moves vertically and closes off the skimmer inlet hole thus preventing any debris and leaves from reentering the pool.

Another helpful addition to the skimmer basket is a pool skimmer sock.

Pool Skimmer Sock

A Pool Skimmer Sock allows the skimmer basket to trap even finer debris. A pool skimmer sock comes in handy when you have a green pool full of algae. The sock traps the algae before it blocks the main filter.

When you are filtering a green algae pool, you will need to replace the skimmer sock a couple of times depending on the severity of the algae bloom.

What happens is that the skimmer filter sock has small holes and will get clogged very quickly. Therefore causing a restriction on pool pump flow which creates air in the system. There will be no movement of water, therefore, no filtration and pump damage can occur. Be present when using skimmer filter socks with a green, yellow or black algae pool. If your pool has a skimmer equalizer line built-in then you won’t have this problem

These filter socks stretch over the top of the skimmer basket. They are made from a strong flexible ultra-fine mesh material.
The filter socks are designed to trap small debris like hair, pollen, algae, oil, grass, bugs and any other debris before it reaches the pump and filter.

Giving longer service life to the pump and filter. When the socks become blocked they are designed to be washed out and reused many times over.

Do not dissolve chlorine tablets in the skimmer basket when the sock is on as they erode the sock.

Types Of Pool Skimmers

In-Ground Pool Skimmer

In-ground pool, skimmers are surface skimmers made from durable plastic (or PVC) or precast concrete. The skimmer is built with a tank and an opening on the upper side. They are placed on the upper part of the pool wall. The swimming pool water level usually fluctuates between half and the bottom of the skimmer opening. More than one skimmer can be added to a pool depending on its water capacity.

The positioning of in-ground pool skimmers in relation to the return jets is critical for pool circulation.
In-ground pool skimmers have a movable flap called a weir. The weir opens or closes according to the pool’s water level and flow of water. The weir will open when the pool pump is on.

In-Ground Pool Skimmer

The weir creates a skimming action ( increase in water speed) as a thin layer of water flows over it, pulling floating leaves and debris into the skimmer basket.

When the pool pump is off the weir closes and traps the debris in the skimmer. Debris cannot flow back into the pool.

It is good practice to remove and clean the skimmer basket of debris at least once a day. Being blocked it can put an unnecessary strain on the pool pump.

An in-ground skimmer should have an equalizer line installed. This helps to prevent air from entering the system if the water level drops too low or the skimmer basket gets blocked.

Above Ground Pool Skimmer

Above-ground pool skimmers either hang off the side of the pool frame with a bracket or they are free to float on top of the water.

Above Ground Pool Skimmer

Depending on the above ground pool brand, there might be a precut opening in the pool liner for an integrated pool skimmer to be fitted. It is now becoming popular to fit these integrated skimmers to above ground pools.

The only thing here is you would need to cut the hole in the liner correctly otherwise the whole pool liner will have to be replaced. This is either a DIY job or if you are not confident have a pool specialist to install the skimmer for you.

Automatic And Solar-Powered Pool Cleaners

The automatic and solar-powered pool cleaners are becoming increasingly popular with pool owners.
The automatic cleaner works with the return jets of the pool.

An automatic cleaner is connected with a pipe to the return jets and how it works is that as the water gets returned from the pump back to the pool it first enters into the automatic cleaner basket where the water is forced to rotate like a whirlpool. Then sucks the surrounding water and debris into the top and down into the filter bag. The debris gets trapped in the filter bag and the water returns back into the pool.

Automatic Pool Skimmer

This helps to reduce the load on the suction skimmer and weir, which in turn cuts down on the load of the main filter. Unfortunately, it only works when your pool pump is switched on.

A solar-powered pool cleaner works on solar power and internal rechargeable batteries. The batteries are charged by the sun’s energy during the day which powers the cleaner. The solar-powered cleaner can be used for in-ground and above ground swimming pools.

Solar Powered Pool Skimmer

A small electric motor drives a rear paddlewheel to move the cleaner through the water, while a front paddlewheel scoops the surface debris into a collection tray. The rechargeable batteries allow the solar-powered pool cleaner to work in overcast weather conditions, in the shade and even after sundown. The cleaner shuts down automatically when its charge reaches a certain level. The cleaner stays like this until it gets enough sunlight to power up again.

Certain solar pool cleaners have a chemical dispenser built-in to take pool chemical tablets. This disperses the chlorine or clarifier chemicals more evenly in the pool. Thus being more effective.

When To Clean A Pool Skimmer Basket

Your pool skimmer is the first line of defense within the pool filtration system. You don’t want the skimmer basket to get to full and then not cope with the debris it has inside it. Eventually, that debris will get soft and broken up into smaller pieces and sucked into the main filter.

How often you need to clean out the skimmer basket also depends on weather conditions and what type of plants and trees you have close to the pool. Neglecting skimmer basket cleaning will give you more work in the long run.

The big question is how often should you clean out the skimmer basket. My answer is once a day. If you have two skimmers clean both out daily. When you clean the basket out you will be able to keep track of what debris is in your pool.

When the skimmer basket gets cleaned daily there is less chance of debris getting to the pump and main filter as well as extending the life of the pool pump as it won’t have to work so hard when the skimmer basket is full and restricting pump flow.

How To Clean A Pool Skimmer

  1. Firstly turn the pool pump off.
  2. Then remove the cover of the skimmer to gain access to the skimmer basket.
  3. Either your skimmer will have a turn-lock so remember to turn the basket counter-clockwise before removing. Or the basket just pulls straight up.
  4. Empty the skimmer basket and it is advisable to spray all the small debris that sticks in the holes out with a garden hose.
  5. Replace the basket back into the skimmer and turn the basket clockwise if you have the turn-lock type.
  6. Replace the skimmer lid and turn the pool pump on.

How To Clean A Pool Pump Basket

Firstly turn off the pool pump.

  1. If your pool pump is below the pool water level. Turn the multivalve position to CLOSED.
  2. Block the return jets with a plug.
  3. Remove the skimmer basket and block the hole with a plug.
  4. Now no water can gravity feed from the pool to the pump.
  5. If your pool pump is above the water level then skip step 2.
  6. Remove the pool pump lid turning it counter-clockwise.
  7. Take out the basket and clean it thoroughly with a garden hose.
  8. Inspect the basket for cracks and holes as they are plastic and become brittle over time. (Replace Basket If Necessary.)
  9. Inspect the pump lid o-ring for cracks or tears. (Replace If Necessary)
  10. Replace the basket into the pump. You may add petroleum jelly to the o-ring to ensure a good seal.
  11. Refit the pump lid turning it clockwise. Do not overtighten. Only hand tight.
  12. Remove the skimmer basket plug and replace the skimmer basket.
  13. Remove the return jet plugs.
  14. Turn the multivalve position back to FILTER.
  15. Open the AIR RELIEF valve on the main filter if you have on.
  16. Turn the pool pump back on.
  17. When only water is coming out of the air relief valve, then close it.
  18. The pool pump should now be primed and circulating the water throughout the system with now air.

Why Should You Keep Your Pool Skimmers Clean?

A pool skimmer is extremely important for the filtration of any swimming pool. It is the first stage of the filtration process in the pool system. Keeping your skimmers clean is half the battle won when you want a sparkling pool.

Remember cleaning out the skimmer baskets daily will keep them free of excess debris and the pool pump will be able to circulate the correct amount of water all the time resulting in a cleaner healthier pool.

There will be less strain on the pool pump, less debris moving through the main filter and less time will be spent adding unnecessary chemicals to your pool. Resulting in a cleaner pool.