Couple of weeks ago I had the pool company come and clean my DE Filter. It was full of DE, which explained why the pressure was building. They gave it a thorough cleaning. But lately the pressure has been building again. In addition I've been having algae issues, so I backwashed yesterday after cleaning the pool. All the green algae was released via the backwash, and then I added the recommended 6lbs of DE. Pressure was back to normal again, but within 2hrs or so it was back up to pre-backwash levels. Any ideas of what may be causing this? Thanks!
Pressure Problems
- Thread starter Dimes
- Start date
Your filter is doing exactly what it is supposed to do, catch the debris from the algae. Algae will clog a filter quickly and DE filters especially. Are you completing the SLAM process to clear the algae? You will probably need to backwash and recharge frequently until the pool is clear.
I should add I have a very mild form of Algae (at least I think it's Algae) - it's a greenish dust the lines the floor and sides of pool. Is there a way to attach a video here?
You can use a photo hosting site like photobucket and post a link to your video here.
IMG_1034_zpsm0zvbjxb.mp4 Video by josephsmith3 | Photobucket
Youu can see the greenish dust kicking up as I sweep the stairs. This stuff was all over my pool.
Just a thought: Perhaps it's time to clean your grids with a filter cleaning solution? Eventually the grids get saturated with oils, lotions, etc?
They are a plastic grid style mesh filter element that goes inside of a DE filter I believe.