The pump sucks pool water from the skimmer on the pool wall and the main drain at or near the bottom of the pool. Depending on the size of your pool, you may need a very large pump size, as large bodies of water require more horsepower to move. The impeller rotates quickly and creates a vacuum to draw pool water to the filtration system. The function is to further filter large pieces of debris that have bypassed the skimmer basket or entered through the main drains. On the way to the pump, some pools will pass the water through a pre-filter basket, sometimes called a pool pump sieve or pump pot basket.

Using our example, you can select a model with a larger filter area or a model with an increased filter frequency. To allow accumulation of debris and backwashing, you can select a model with a filter area of 5 square feet and a filter speed of 20 gpm. To determine the filter flow, multiply the filter surface by the filter speed. The filter surface is the filter surface through which water flows into the filter housing, measured in square feet. The filter rate is the number of American liters of water flowing through one square foot of effective filter medium per minute during the operation of the circulation system.

The entire connected grid set is called the grid set. Replace your filter cartridges after about 15 cleanings. With each cleaning, they lose some of their ability to catch dirt, as the fibers weaken and separate. This mainly relates to above-ground swimming pools. This is because as the ice caps thicken, external tension is pushed against the walls.

Such a hidden problem can also cause the system to lose suction at night when the pump is turned off. The leak drains aquarium sand filter the water from the filter tank and then pulls the water out of the pump. DE is added to the system via the skimmer.

The “micron level” of a filter tells you the size of the smaller dirt it catches, so a lower micron level means better filtration. A main drain is the large drain at the bottom of the pool. Now underground pipes can also freeze, but not as quickly.

All assemblies use O-rings to create a good seal and manufacturers generally recommend the use of a suitable O-ring lubricant to ensure a good seal. Remove the lid: With the pump off and the pressure valve open, unscrew or unscrew the clamp attachment and remove the annular clamp assembly from the tank. To remove the cap or the top half of the tank, apply a lever to the edge of the cap and carefully remove it, making sure the cap is not forced out of the round.