Monthly Archives: December 2020

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Why and How to Remove Limescale From Pool Heater and Swimming Pool

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Calcium deposits are formed on surfaces that touch hard water. Even though these deposits occur naturally, they can cost you a lot of money if you do not eliminate them. Calcium deposits can cause a water heater to increase fuel use by 40 percent or more. It is beneficial to observe these deposits and withdrawals when possible.

Bird's Eye View of a House with Swimming Pool

Measure the amount of lime in swimming pool water

Measuring the level of lime in the water in your swimming pool is in fact the same as measuring the hardness of the water, always given in TH (hydrometric strength). Very easily carried out thanks to bands with colorimetric indicators, this test will make it possible to determine the concentration of calcium and magnesium carbonate (and therefore of limestone) in the water in our basin.

Generally speaking, it is estimated that the ideal TH for swimming pool water should be between 10 ° f and 20 ° f. Beyond 20 ° f, the east is said to be hard. And above 25 ° f, it is considered that its lime concentration is too high: it must therefore be treated with an anti-lime product.

Why is having lime in your swimming pool a problem?

If pool owners hunt limestone like this, it’s not for nothing. Having excess lime in your swimming pool can indeed be the cause of various problems.

First of all, at the level of the interior of the basin. Because the more our pool is loaded with limestone, the more “chance” we have of seeing it build up from the inside. 

And this as well at the level of the waterline as at the level of the walls and the bottom (especially if one has opted for a swimming pool liner as a coating). And a scaled pool is a pool whose water will be cloudy, and whose walls will be covered with gray or whitish deposits.

Stains which, in addition to being unsightly, will promote the appearance of ‘impurities and algae development. Without forgetting the possible inconvenience for swimmers: possible irritation of the skin and eyes.

But that’s not all: having too much lime can also be dangerous for the filtration system of the swimming pool. Indeed, when there is too much lime in our water, it will simply build up scale and prevent the proper functioning of the swimming pool filter.

Instructions to remove large calcium deposits from water heater

  1. Drain all water from the water heater tank.
  2. Remove the drain valve. With a wrench, unscrew the valve.
  3. Insert a long, narrow brush through space from which you have removed the drain valve. Rub each inside surface of the bottom of the tank with the brush.
  4. Reinstall the drain valve. Apply Teflon tape on the outside of the valve to prevent leaks.
  5. Open the drain valve and attach a garden hose to it.
  6. Open the water supply through the hose and in the water heater. Leave on for 15 to 20 seconds and then turn it off.
  7. Let all the water drain out of the tank.
  8. Repeat this filling and draining process until the water draining from the stove is clear.

How to prevent limescale in the swimming pool

If you live in an area where the water is hard (TH greater than 20), the limestone will represent a real danger for our pool and our equipment. To avoid having to change our liner or completely empty our pool to scrub the limestone from the walls, it is better to act upstream.

To do this, we can:

  • Buy a lime stabilizer from a pool equipment store to prevent lime deposits in the pool.
  • Check that the pool water is not too hot, as a high temperature favors the formation of scale.
  • Carry out at least 3 anti-limescale treatments per year. The first to commissioning the pool, the next in mid-season, and finally the last before putting the pool in winter. Obviously, if our pool shows signs of scaling outside of these 3 periods, we apply an anti-limescale treatment and we rub the walls well.

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How to Remove Pollen from Your Swimming Pool Quickly?

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You wake up in the morning, stretch out and take a look at your beautiful pool. But… Woah…. What’s that dusty, yellowish hue floating in the water? You guess it. It’s pollen.

Pollen is a part of life. And like anyone with allergies, people with swimming pools need to take a few steps to control the pollen in their pool. Especially during the times when the pollen is heaviest in spring and summer.

Fortunately, getting rid of this pollen is quite easy and doesn’t take a lot of time. Simply follow the steps below to rid your dusty, yellowish pool of that unsightly pollen and enjoy clear, blue water again.

When is the heaviest pollen?

This is something every pool owner should know. You can get an idea of ​​when it is heaviest by just looking at the pollen count. It differs from place to place: region, natural environment of the pool.

If you are allergic to pollen, you already know that. But it’s something every pool owner should be aware of as well.

Watch the pollen count carefully, and when it increases, you can anticipate the extra work that will be required to keep your pool clean and clear.

Pollen or algae?

Before you start cleaning, you must first make sure that it is indeed pollen. Indeed, some varieties of algae look a lot like pollen.

For example, mustard seaweed has a yellowish/light green appearance that resembles pollen. The difference, you’ll see, is where it accumulates.

Remember that the pollen floats on the surface of the pond. Algae, on the other hand, often sticks to the walls, and sometimes to the bottom of the pool. They are not easily filtered by your swimming pool filtration system.

So if it’s floating on the surface and you notice that some of it is being picked up by the skimmers in your pool, chances are you have a pollen problem.

How to remove pollen from your swimming pool?


Now that you’ve established that this is indeed a pollen problem, let’s take a look at what you can do to get rid of it.

The most important thing at this stage is to understand the following points. It is not very difficult to get rid of, as long as you work on it a little bit every day, during the periods when the pollen is abundant.

1. Operate your filtration

Most of the time, it is not necessary to run your filter 24 hours a day, 7 days a week. But when you have a pollen problem, the filtration system is your best defense in removing it from the surface of the water.

If necessary, put it on forced and continuous, the time to skim the surface. This may not be enough, but it is the first instinct to adopt.

As the pollen deposit is subjected to the sandstones of the wind, it may also be necessary to temporarily modify the direction of the water jet from the discharge nozzles. The idea here is to reach the dead zones of the basin to force the pollens to go towards the skimmers.

Do not forget to open the skimmer valves to 100% and the bottom drain to 50% if there are bottom deposits.

This will greatly reduce the amount of manual labor required to rid the pool of this pollen.

Of course, throughout this phase, check the state of the pressure of the filter (manometer) and the amount of waste in the baskets of the skimmers or the pump pre-filter. Clean them as soon as they are too dirty.

2. Skim the water regularly

Every morning (and maybe the afternoon too), take a very fine-meshed landing net and put it in the water to collect the pollen that has accumulated overnight.

Unfortunately, you will have to repeat this process more than once a day during periods of high pollen distribution.

Remember that an ordinary landing net is generally not as effective as its mesh/braiding is often too large to trap pollen.

At a minimum, you have to push as much pollen as possible into the water flow that goes from the delivery nozzles to the skimmers. Without forgetting to clean the water line if necessary.

3. Aluminum sulphate

Some pollens are simply too small to be captured by a dip net. They will even pass through the filtration system and return to the pool.

To get rid of this type of pollen, you can add aluminum sulfate to your water. It has the effect of clumping the pollens together to form a thicker substrate.

The filter and the landing net can thus capture them more easily. The landing net allowing them to be completely removed from the filtration circuit.

4. Shock the pool

When fighting pollen, it’s a good idea to shock the pool at night, before going to bed.

It will kill whatever has made your pool a good place to call home, because of the pollen floating around in the water.

With the filtration working continuously overnight (if you leave it running – recommended) or restarting it the next morning, you will be able to more easily remove whatever is left in the water.

5. Vacuum if necessary

Sometimes simple surface skimming and continuous filtration are not enough. If the pollen is particularly heavy in your area, you may need to vacuum the pool manually.

Do this as a last resort and only if necessary, so as not to consume water and electricity unnecessarily.

Remember, pollen is life!

When you have a swimming pool, you want the water to always be clean and clear. And it’s always frustrating to see your pool covered in a yellowish, floating substance.

In the face of pollen, there is no other alternative than action. It doesn’t take much time. The most important thing is to be methodical and regular during periods of pollen proliferation.

Doing nothing will inevitably lead to a degradation of the chemistry and the water balance. It will quickly cloud, turn, and be taken by algae .

It is often at times when one does not bathe yet because the water is too cold. So it doesn’t have too much of an impact. But if it does, your swimmers, and perhaps your allergies, will thank you.

Pollen is unfortunately inevitable. It is also, and fortunately, essential to the renewal of nature and its natural cycle. Our own survival depends on it. You also have to know how to savor and have fun in these little moments. This is also the swimming pool.

And if, despite all your precautions and hard work, you can’t get rid of those pollens or keep your water clear and crystal-clear, get someone to help.


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Pool Water Maintenance: What You Need to Know

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Owning a swimming pool during the summer months is awesome. At least, as long as it is clean and healthy. To make the pleasure last, you have to maintain it. In this guide, we will show you what you need to do regarding the maintenance of your swimming pool, its water, and the filtration system.

Pool maintenance

Through regular maintenance of your pool, you can prolong its life and the life of its equipment. And when we talk about maintenance, it is mostly the simple routine cleaning and maintenance done regularly that means the most for the swimming pool’s health.

It is advisable to clean the waterline of all impurities at least once a week. A tedious job, and sometimes long depending on the size of the pool, but effective in ensuring the cleanliness of the pool. To do this, you can use a specific product, an anti-lime product or a degreaser, and rub with a sponge.

It is recommended to use a vacuum cleaning broom or a swimming pool robot to clean the bottom of the pool, at least once a week.

You must regularly empty the baskets of the skimmers, otherwise known as surface skimmers, to avoid their clogging and clogging of the walls.

As a general rule, it is advisable to monitor the water level. The surface of the water should be two-thirds of the skimmer. Underneath, there is a risk of air intake and damage to the pump. Above, the cleaning of the water turns out to be imperfect.

Water Maintenance

Cleaning your pool also means maintaining the water. It must be clear, balanced, disinfected, and disinfectant.

You can very simply clean the surface of the water using a dip net to remove large debris. To be repeated at least once a week.

The quality of the water also depends on the use of chlorinated or anti-algae products. To do this, you have six options: chlorine, bromine, active oxygen, PHMB, ultraviolet, and salt electrolysis.

It is advisable to regularly analyze the pool water, and more precisely the level of pH and disinfectant present in the water. Then you must correct the water accordingly, either by adding a cleaning product or by reducing its quantity.

Note: a pH below 7 can be harmful to the skin.

Maintenance of the Filtration System

The quality of the water depends on the filtration system. To check the filtration system, you will need to check the good simmering of the water at the outlet of the delivery nozzles: a sign of good water circulation in the filtration system.

Check the clogging of the filter. To clean a cartridge filter, simply remove the cartridge and rinse it with a water jet. To clean the other filters, backwash systems exist.

Regular Maintenance is a Prerequisite for Quality Swimming Pool Water

To have quality bathing water and not to resort to shock treatments, it is preferable to maintain your swimming pool regularly.

The pool water should be pure, clear, and the pH should be neutral; slightly basic water is however accepted – the ideal rate of 7.4. To avoid any imbalance of your water source of green water, cloudy water, and the appearance of water lines, the maintenance of swimming pool water is mandatory.

This maintenance concerns the use of a swimming pool disinfectant, the occasional application of products to maintain the pH level stable as well as the filtration of the water. Inflatable pools, tubular pools, above-ground pools, and in-ground pools are subject to regular and periodic maintenance: all pool water must be maintained and analyzed regularly using water control kits.

The analysis of swimming pool water measures the level of disinfectant, the pH, the stabilizer, and the alkalinity. As a reminder, water with a pH (potential of hydrogen) greater than 7 is said to be basic and acidic if it is less than 7.

Why You Should Always Clean Your Pool

It is imperative to clean your swimming pool for several reasons:

  • Benefit from clear water and preserve its quality from any external pollution;
  • Guard against any premature wear of coatings such as liner, concrete or tiles;
  • Maintain water that is always clean, healthy, and suitable for swimming.

Cleaning your pool after winter is also essential. Above ground pool, in-ground pool, wood, or plastic, all need cleaning.

A swimming pool enclosure, a winter cover, or a pool cover limits the cleaning of the pool, however, the pool and the liner are not immune to the appearance of a water line and suicidal insects!

Protecting your swimming pool from the elements is one thing, believing that this eliminates the need for cleaning with a high-pressure washer is a little too optimistic!

How to Clean Above-Ground and In-Ground Pool

You need different equipment to ensure periodic and daily cleaning of your swimming pool. Cleaning your pool naturally is recommended, and cleaning your pool with acid is strongly discouraged. Hydrochloric acid is not to be used in a swimming pool, even in skimmers!

Here is How to Clean an Above-ground or In-ground Pool in 5 Steps:

  • Clean the surface pool water of any external pollution using a dip net.
  • Suck up dirt from the bottom of the pool with a vacuum broom or with an automatic or semi-automatic pool robot, more practical because it is autonomous.
  • Use a water line brush, a kind of sponge to gently rub the waterline, formed by residues marking the limit of water on the liner (be careful not to damage it). The use of special coating/liner cleaning products makes the task easier. The walls and the bottom can also be cleaned with a brush.
  • Remove the residues present and pass a sponge on the skimmers, filters which are also to be cleaned. The skimmers clean the surface of the water by skimming them, the impurities sucked up are then sent to the pump which, after filtration, pushes the water back into the basin.
  • Wash cover, curtain, tarpaulin, pool enclosure, and coping; the use of a high-pressure cleaner facilitates the removal of dirt. The use of a low abrasive product is necessary to preserve the equipment.

Pool maintenance must be regular to be effective. If you are not there or do not have the energy necessary to maintain your pool, contact a pool specialist near you. Most of them provide maintenance contracts. And when your pool tiles and wall get overgrown with lime deposits and calcium deposits, call the Calcium killers to help you get rid of those ugly white deposits on your pool tiles.


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How to Use Water from Wells for Your Pool and Avoid Calcium Deposit Build Up

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When you want to install a salt chlorinator in a pool with well water, we recommend that you empty it and fill it with water from the water supply grid.

What are the drawbacks of well water

The reason is that lime and other minerals often cause problems in the chlorinator electrode.

During electrolysis, lime and other elements precipitate and end up being embedded in the plates of the chlorinator cell.

The performance of the electrode decreases, because the plates are electrically isolated, due to the layer of lime, which acts as an insulator.
To clean the electrode plates, the electrode must be immersed in acid, which also attacks metal.

After many washes, the electrode ends up having serious corrosion problems.

In addition, there are other salts and metals present in well water that cause other problems, both due to the sediments they cause and due to the electrochemical effects that are produced.

Lime stains in the pool

If you have ever noticed, you will have seen that there is a white line on the walls, at the height of the surface. This is caused by lime deposits.

In pools with well water, these lime deposits form in a short time, and if they are not removed, the layer becomes thicker and difficult to clean.
Another problem is the roughness that is noticeable on the walls, when passing the hand the touch is rough.

Over time, this texture favors the accumulation of dirt and makes cleaning more difficult.

In addition, if you apply acid to dilute the lime, you are also diluting the cement in the joints, damaging the lining, until you have to empty the pool to repair it.

How to use well water for the pool

On many occasions, especially in pools installed in rural areas, there is no access to running water, so there is no choice but to use well water to fill the pool.

Well, I have a trick to remove lime from the pool with well water.

Well water treatment

This trick is not for everyone. It is not difficult to apply, but you have to be careful to follow the steps correctly.

If the pool is already affected by the remains of lime, you should lower the pH as much as possible, adding a lot of acid, or liquid pH-.

With a pH lower than 6, the lime will start to thin, but so will the cement joints.

It is VERY IMPORTANT that no one takes a bath during the process. The acidity of the water will be very aggressive for people.

After a few days in this state, empty the pool completely, clean the surfaces well with acid (better to use a specific liquid or pH reducer based on sulfuric acid, because hydrochloric acid or sulfonate emits a lot of vapors).
Finally, you will have to re-grout (apply Borada or seal with cement) all the joints.

As you can see, it is slow and hard work, and it is better to do it out of season, to avoid the effects of heat on the empty pool.

With the pool empty, the next step is filling (you probably already guessed that).

Start filling it by adding shock bleach.

The well water contains a lot of organic matter, is very “alive”, and then the plant matter, such as algae, begin to react to the light of the sun. Water can go bad in a matter of hours. Sometimes the same water is already green. Don’t worry about adding more chlorine than necessary, while no one takes a bath.

How to use well water for your pool

Now comes the secret.

Add flocculant to the water. Yes, it’s that easy, but wait, this is just the beginning.

The flocculant causes all elements other than water to stick together, forming solid “flakes” (flocs) that settle to the bottom of the pool or remain stuck in the sand filter.

Be very careful not to overdo the dose of flocculant, because the sand can stick, and you will have to replace it.

calcium removal calcium killer

You will have to do sand washes every few hours so that the sediment is expelled.

These remains will include lime, algae, metals, and other elements.
The water will be practically pure. You will also have to help by sweeping the bottom so that the dirt does not stay there.

You can increase the effectiveness by adding a layer of diatomaceous earth, or diatomaceous sand over the filter sand, to retain a greater amount of debris.

Anyway, think that diatomite is difficult to find and somewhat expensive, so it is not necessary to use it unless you want to do a cleaning worthy of an operating room.

Most of it will go down the drain when doing a sand wash, so this is disposable.

The process time will depend on the type of water you are treating, so you will have to experiment and observe.

You can also repeat the process after a few days. However, it is better to do it before adding salt, in salt chlorination systems.

Prevent stains on the pool tile

I am not a fan of adding chemicals to the water, so once the pool is filled with purified water, I would try to avoid adding other products. For that, it is important that the chlorine level and the pH are perfect. There is nothing else to do.

When adding water, after washing, or simply to compensate for evaporation, we must bear in mind that we have also added lime, so we can repeat the process from time to time.

It should be done as a shock treatment. We do not recommend using maintenance flocculant, because it is still a chemical product which in large quantities is unhealthy, as you can see in this post.

If you’ve done enough washes to remove most of the lime, you’ll see that the water is crystal clear and the walls shiny.

Run your hand over the walls periodically, to make sure that the touch is smooth (but not slippery, which would be a sign of algae formation).
If you notice that they become rough, you should lower the pH a little and do another anti-limescale treatment.

Try to have these treatments done on the days that the pool is not used, to avoid exposure to bathers, especially with low pH.

Use of anti-scale products for swimming pools

There are products that keep lime in suspension, so they don’t really remove it, they just keep it from sticking to the walls.

This is an ineffective solution because it forces you to continually add chemical products, with the risks that they entail, and it also does not completely prevent lime from becoming embedded in the chlorinator electrodes.

The flocculant and sand wash trick works better, because you’re actually getting a lot of the lime out of the pool.

Other options to reduce pool limescale

In facilities with intensive use, such as spas and hotels, a tank can be installed to flocculate the water before adding it to the pool. In addition, filters or osmosis systems can be installed, which can purify the water, leaving it almost as if it were distilled.

These systems are not justified in domestic swimming pools, because with good flocculation the water quality is already very good.


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