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The pool skimmer is an essential device that helps to filter the pool. However, with all the recommended equipment, its role is sometimes unclear and its maintenance little known. Discover the part and function of the skimmer, as well as its composition and maintenance method.

What Is A Pool Skimmer?

Pool skimmers happen to be the first element of the pool filtration system. Water passes through the skimmer before following the filtration circuit and returning to the basin. The skimmer is a rectangular, plastic part to be sealed. Embedded in a wall of the pool, it skims the surface to remove large impurities such as vegetation, detritus, insects, etc. It can filter 5 to 6 times a day all the water present in your pool to guarantee you a quality swim.

About Pool Skimmer

The Different Elements Of The Skimmer

The pool skimmer consists of several factors:

The Opening: the opening is the opening through which water is sucked. Rectangular, sometimes square, it is the visible element of the pool.

The Non-Return Valve: this component is a movable part that has the function of preventing that the aspirated dirt is not rejected again towards the basin with the movements of the water.

The Basket: the basket is located within the skimmer and collects the massive collected waste. It should be emptied and rinsed regularly to prevent the system from clogging and getting dirty.

The Pre-filter: this removable filter bag is placed in the basket to exert more excellent filtering of small particles, 100µ for a quality model, and from 200µ to 300µ for a standard model. The pre-filter is regularly emptied and changed for excellent filtration.

The Flow Regulator: most skimmers include a device that adjusts the flow according to that of the filtration pump.

The Access Hatch: the access hatch is placed on the pool deck and provides access to the skimmer basket and pre-filter for easy maintenance.

What Is The Role Of The Pool Skimmer?

Role of Pool Skimmer

Pool Filtration

The pool skimmer has several roles, but it is primarily intended for the filtration of pool water by skimming the surface. It retains the coarsest dirt before sending the rest of the water into the filtration device. Easily accessible, it can be cleaned and controlled easily and quickly.

Regulation of The Water Flow In The Basin

Most pool skimmers contain a flow regulator cap to modulate the flow of water, depending on the power of the pump.

Draining The Overflow

To prevent the pool from overflowing in the event of heavy rain, most skimmers have an opening to which it is possible to connect a hose intended to send the excess water to a dedicated drainage area.

The Suction Nozzle

The skimmer sucks up the water and allows the connection of cleaning devices such as the vacuum cleaner or the hydraulic robot. The broom then sends the debris it has sucked to the filter; the method may vary depending on the robot model, some suction nozzles being equipped with filter bags.

The Diffusion of Water Treatment Products

The skimmer can collect the treatment products, both liquid and solid because it allows them to be diluted during the passage of water through the filtration device. It has the advantage of better diluting the products in the basin and thus avoiding areas of over-concentration. Also, be aware that products such as chlorine pebbles are too aggressive for liner-type coatings. Indirect contact with the liner, they are likely to alter them.

How Many Skimmers Should Be Planned In A Swimming Pool?

To know how many skimmers should be installed in your swimming pool, it is essential to take into account several parameters: the surface of the water body and the flow of the hydraulic circuit.

The Surface of The Water

To find out how many skimmers you need to install in your pool, take the area of ​​your pool into account. For quality filtration and optimal efficiency, provide a skimmer for 25 m² of a surface to be treated, or even 30 m² at most.

To calculate the area, multiply the length by the width. Then install the number of skimmers necessary for the treatment. If you install several skimmers, avoid bringing them together. On the contrary, space them to allow them to clean the basin as a whole thoroughly.

The Flow of The Hydraulic Circuit

The flow rate of a skimmer depends on the diameter of the pipes connected to it. For example, a 50 mm diameter pipe will allow a flow of 7 m3 / h. On the other hand, a 63 mm diameter pipe will allow a flow of 10 m3 / h.

To determine the number of skimmers needed, add the flow of the skimmer or skimmers to the flow of the bottom drain if you have it, then compare the sum with the flow of the filtration pump.

How To Maintain The Pool Skimmer?

To ensure a reasonable service life and efficiency for your skimmer, clean it regularly and take care of its maintenance. All elements must be checked and cleaned frequently. Empty the impurities from the basket and the pre-filter and remember to rinse them; you will avoid clogging and clogging of the parts.

The valve for regulating the water level must be carefully maintained, as the pump can be damaged if it stops working and you would risk much higher costs for repair. Indeed, the flap or non-return valve prevents the collected dirt from returning to the basin. If it is not essential, it is beneficial and highly recommended. In its absence, the dirt returns to the basin once the pump is stopped.

Besides, it helps to regulate the level, and it thus protects the pump, which would risk being defused and deteriorating without its presence. As it is fragile, it is preferable not to let children play with it and to check its state of wear regularly. If you replace it, count between 10 euros and 20 euros depending on the model chosen.

The entire spare part set that makes up the skimmer is in store and can be replaced to enjoy healthy, clean water all year round. In case of wear, do not hesitate to replace a part; this will avoid damaging the entire system.


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