Sand filter pumps clean water by forcing it through a bed of sand. Here's a breakdown of the process:
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Water Intake: The pool water, containing debris and impurities, is drawn into the pump.
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Distribution: The unfiltered water is then distributed evenly across the top of the sand bed inside the filter tank.
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Filtration Process: Water drains downward through the sand. The sand acts as a filter, trapping dirt, debris, algae, and other particles. Different grades of sand are often used to filter out varying particle sizes.
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Collection: At the bottom of the tank, a lateral assembly (a set of slotted pipes) collects the filtered water. These laterals prevent the sand from entering the plumbing system.
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Return to Pool: The filtered water is then pumped back into the pool through the outlet line, completing the circulation process.
In summary, the sand filter pump works by:
- Intake: Drawing in dirty water.
- Filtration: Passing the water through sand, which traps debris.
- Collection: Gathering the filtered water.
- Return: Pumping clean water back into the pool.