Sand filters use a specially graded sand as the filter media. The water enters the tank through the diffuser. As the water goes down through the bed of sand, the dirt and debris is trapped between the grains of sand. When the water reaches the bottom of the filter, it enters the laterals and is returned to the pool.
Sand filters filter out debris down to about 40 microns in size. Anything smaller than 40 microns will probably not be filtered out.
Last Updated: 05/16/2013 11:14 AM - ID:2860