How Does Swimming Pool Sand Filter Work

Sand filters are an inexpensive and durable choice for swimming pools making use of a special fine grain sand to trap particles as small as 0. We would like to explain what each setting does. While we have seen filters go 20 years or more without changing the sand and still do the job they are not as efficient as they should be.

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How often should the sand in a swimming pool filter be changed.

How does swimming pool sand filter work. The sand filters always have a six port valve with different settings. Sand filters consist of a large tank made of fiberglass concrete or metal containing a thick bed of special grade sand which has a squarish shape. The pool water enters a tank through a diffuser which draws the water down into the bed of sand. The water comes up through the pump through the head it reverses through the filter and then back over to the street which cleans your pool.

This is where your filter comes in. The chemicals that you add to your pool kill harmful bacteria and prevent algae from developing. What that does is cleans your filter sand automatically. In this position the water runs directly out of the filter bypassing the sand this is only used when the pool is very dirty and thorough pool cleaning is necessary.

During filtering operation dirty water from the pool comes in through the filter s inlet pipe which leads to the water distribution head. But what they can t do is remove the actual debris from your water. This is what your sand filter does 99 of the time it filters the swimming pool water. The filters in this system are high rate sand filters.

The particles of debris are caught in the sand bed and the water that exits from the bottom of the filter is returned clean to the pool. We recommend changing the sand every five years. We recommend changing the sand every five years.