We just bought this house with pool, pump is not sucking as well and pressure is too low


New member
May 25, 2020
HI, we just bought this house with inground vinyl liner pool with DE filter. A friend came over to help us open it and give us a quick lesson, but we are struggling now. I've been reading through forums and I've ordered the real test kit - it's coming Monday. Right now our problem is that I tried to start vacuuming the pool this morning and very low suction. My husband checked the filter and he said the pressure is too low. He backwashed quickly, no improvement. He opened the filter and found all DE at bottom of filter. We haven't added any since initially opening pool 2 weeks ago now. Any ideas what the problem might be - where we look and how often we need to add DE and do we need to remove it from bottom of filter? Thank you so much!


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Welcome to TFP.

When you backwash a DE filter you wash out 80% of the DE. You then need to "recharge" the filter with new DE after backwashing. You should not run the DE filter for more then 10 minutes without DE or you will need to open up the filter and clean off the grids.

Post pics of your pool equipment and labels. We need to know specific model numbers to help you.