Swimming pools FAQ

Chlorine is needed to keep the water in the pool clean. The various chlorine particles bind with microbes, creating combined chlorine that disinfects the water. However, when chlorine binds with dirt it also forms chloramines, which creates the unpleasant chlorine smell. To avoid this, keep the acidity of the water neutral. This way, chloramines cannot form. It is also important to prevent heavy soiling of the pool water. A reliable pool filter and an automatic measuring and control system will help with this.

Osmosis is also known as polyester rot and is a typical phenomenon that occurs in polyester monoblock pools or constructed pools with a polyester interior. It is caused by swimming pool water flowing through the polyester wall. The pressure creates bubbles in the polyester. After a while, the bubbles burst and turn black. In addition, high water temperatures also contribute to this process. However, Leisure Pools builds swimming pools from 100% full epoxy vinyl ester resin. This material is resistant to osmosis, which is why we offer a lifetime osmosis warranty.

If the pool water turns green, the pool has not been disinfected for a certain period of time, which allows algae to form. To solve this, the pH value must be adjusted with a correcting fluid or powder. After correcting the pH value, add chlorine, which is called a chlorine shock. After this, filter the pool for at least 12 hours during the day and then shut down the system at night. The algae react by turning deep green before being destroyed and sinking to the bottom. Afterwards, vacuum the pool with very slow movements, so as not to stir up the fine algae dust. After vacuuming, clean the pre-filter, backwash the filter and rinse the fine filter. Consult a specialist if the chlorine shock does not help. You may be dealing with a rare and resistant alga.

Prevent green water by carrying out sufficient preventive checks. Once a week is enough for normal use, but only if you have a high-performance filter system. In case of a thunderstorm, extremely high air temperatures or intensive use of the pool, it is recommended to carry out an additional preventive check. Slightly lower the pH value to increase the efficiency of the chlorine. Adequate filtering is always the answer! At a water temperature of 28°C, you filter for a minimum of 14 hours. When your roller shutter is closed, it is still necessary to filter the water to protect the shutter from damage.

An automatic disinfection system (also called a measuring and control system) is a device that monitors and adjusts several parameters of the swimming pool water. The great advantage of this is ease of use as well as a much lower chlorine concentration in the pool. Automatic disinfection of a pool results in a 3 to 5 times lower chlorine concentration. This prevents lime deposits, reduces the odour of chlorine and prevents irritation of the skin, mucous membranes, respiratory tract and lungs. A proper filter system combined with an automatic disinfection system guarantees crystal-clear pool water of perfect quality!

Always rely on a specialist to calculate the capacity of the pool pump. After all, undercapacity endangers the health of the user while overcapacity causes unnecessary power consumption. Always ask your pool builder to justify his choice and inquire about the conditions and advantages of a variable speed pump. In some cases, this can save up to 150%.

Ideally, you should filter the pool 24 hours a day, so you don’t have to fall back on chlorine to disinfect the water. However, a conventional pump uses quite a lot of energy. A variable speed pump offers a solution. Thanks to a precise analysis, the energy consumption associated with a conventional pump—which runs for an average of 14 hours—can be reduced to less than half, while still filtering for 24 hours. In addition, it enables continuous filtering in winter at an average consumption of 100 watts. This prevents the system from freezing and makes starting up in the spring very easy.

Limit the loss of energy. For example, build the technical room as close to the pool as possible (10 to 20 metres is good). Avoid basement installation and optimise the system with as few bends as possible.

Choose a thick-walled plastic pool interior with a solar pool cover. The nano-insulation techniques of Leisure Pools also ensure that no heat can escape from the pool and the solar shutter heats up the water.

Have the pump capacity calculated on the basis of your swimming pool installation, in order to exclude insufficient filter capacity and to avoid unnecessary consumption. Choose a pump with variable speeds to save energy.

There are different types of swimming pools on the market. People who want to buy a swimming pool often come across the terms “concrete pool” and “one-piece pool”. The main difference between the two is the way they are built. A concrete pool is cast in concrete on site and a one-piece pool is manufactured in the workshop and delivered in one piece. Both pools have advantages and disadvantages. So the choice is very personal.

Unfortunately, this question cannot be answered briefly. Leisure Pools has summarised the rules for you in a blog article, but we always recommend that you request information from your municipal planning department.