What service does a sand filter need?
Sand filters should be backwashed when the operating pressure rises 8 – 10 psi above the filters baseline pressure. Sand replacement should be performed every 5 years or when the filter consistently runs at high pressures. Suntan lotion, body oils, dirt and chemical residues cause the sand to become thick or clump together with buildup which prevents the sand from efficiently filtering the water. When this occurs the sand filter will usually operate at a very high psi level and/or algae will form. Please refer to our Regular Maintenance page for pricing.
