Why does my filter run at a high filter pressure and have reduced water flow to the pool?
1). A dirty filter may be the problem. When the filter pressure rises 8-10 PSI over the clean starting pressure, it is time to backwash or clean the filter. 2). Algae may be clogging the filter, keeping the pressure high. The filter cannot kill algae. Contact your local pool/spa professional or dealer for proper chemical applications. 3). If the filter pressure continues to run high with reduced water flow to the pool, the pump may be moving more water than the filter is designed to handle. Check the flow ratings of both the pump and filter to ensure they are sized correctly. 4). You may have a blocked or plugged return line.
