Sand Filter Pressure Increases And Low Suction
by Marie
We have 2 skimmers, one in center of pool on bottom and the other a normal skimmer up top. There's no problem in back washing? Thanks for the question Marie There could be a few things to look at. First, is the gauge working? Easy way to find out is turn the pump off. If the needle drops to zero, it's fine. Next, be sure the pump lid is seated correctly and the gasket is in good shape. Air might be getting into the system. Be sure to bleed the air out of the filter tank. When you turn the pump motor off is there any backward flow out the skimmer? There may be a large air bubble caught in the system causing the pressure to rise. Be sure all valves are placed in the proper positions. You want the right amount of flow going through each valve. Normally the pressure will rise when the pump has to work harder for the water to flow through the system. This might mean blockage somewhere. Check the lateral to be sure they're not cracked. If they are you'll need to replace them. Here are some posts to consider: No Backwash Or Rinse Pressure On A Pool Sand Filter... My Pool Sand Filter Has Low Pressure..Low Psi & Multiport Valve Is Leaking.. Check the sand for channeling. This is when the sand becomes clogged with oil and debris. Take the top off the filter (turn the system off first). Feel around the inside sides of the filter for holes, edges, pits, etc... If there are any, you have channeling. Email back and I can give you a good way to degrease the sand filter. To post a reply, or if you have a similar question, you can see your post on the Q&A page in the "Sand Filter" category. Swimming Pool Questions and Answers Check back to this post for answers. Hope this helps and have a fun and safe swimming season. Robert |
