Why Is My PSI Still High After Backwashing? Understanding and Fixing Filter Pressure Problems

If you’re a pool owner, you’re likely familiar with the routine process of backwashing your filter. It’s a critical maintenance step designed to clean your sand, cartridge, or diatomaceous earth (DE) filter, thereby reducing the pressure (measured in PSI) and restoring proper water flow. But what happens when you backwash your filter and… nothing changes? … Read more