Sand Filters

Sand Filters are one of the most popular ways to filter water. They are simple, effective and require little attention. A sand filtration system will remove particles that are 40 microns and larger. Pool water is routed through a sand filled vessel. Dirt accumulates in the spaces between the sand particles, which causes the pressure to rise. As the pressure gauge rises, this signals you it is time to backwash the system. Another advantage to the sand filter is the low start up cost. Some of the disadvantages of a sand filter are frequent backwashing. Sand filters require plumbing a separate sewer line to an area that the pool water can be backwashed to. Another disadvantage of a sand filter that particles between 25 and 40 microns can make the water cloudy and the use of a flocculants may be needed.