It was surprisingly simple to build one and I've also tested the standard tap water. It showed no contaminants almost all and it perfectly safe to drink. And the filter works on gravity as well so to lower the number to concentrate on any energy bills as well.
No matter what type of filter your pool utilizes - sand, cartridge or DE - be likely to chemically clean the filter every 3 months with a positive filter cleaning product. Backwashing of sand or DE filters and rinsing of cartridge filters only removes dirt and debris
