Many pool owners try to avoid or put off the cleaning of the filter grids and cartridges.  A DE filter should be cleaned every 6 months.  Your pool will stay cleaner, circulate better, and be healthier if the filter grids are clean.  Plus this is what manufactures recommend for general maintenance.  A cartridge filter should be cleaned every 3 to 4 months.  A sand filter has a much longer life span and sand can go several years before the sand has to be switched out.

Texas Oasis Pool Service & Repair
9720 Coit Rd. Ste 220146
Plano, TX 75025
214-532-7971
Fax: 214-407-8044
www.texasoasispoolservice.com