I am new to this forum but I have a problem with my above ground pool that has been driving me crazy. I have an older DE filter and a 2hp pump. If i clean disassemble the filter and put it back together - when i turn it back on the pressure and flow out of the return valve is perfect. As an hour or 2 goes by it slowly decreases until there is barely anything. Any suggestions on what may be the problem?
I am far from handy but appreciate any help or insight you may have.