How Does A Pool Sand Filter Work

Sand filters work by allowing water to cycle through a canister that contains sand.

The water flows through the sand with ease but larger particles are unable to pass through. 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. These systems may or may not make use of the chlorine tablets here. A de filter requires back washing less often than sand or cartridge filters.

Sand filter with the sand system the water passes through and debris is filtered out of it. The pool water enters a tank through a diffuser which draws the water down into the bed of sand. In my article about how to clean a green pool i was able to vacuum the pool without by passing the filter to an external drain source since the de filter captured every bit. The pool filter system is.

If it does not then the chlorine must be added directly to the pool. Once the debris and other particles have been filtered out by the sand a pump moves the clean water back into the pool. 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. During filtering operation dirty water from the pool comes in through the filter s inlet pipe which leads to the water distribution head inside the tank.