Hi,

I have noticed lately a lot of bubbles coming out of my returns. If I open the top of my filter (DE 100) there is always some are trapped in there. But even if I let all the air out until just water shoots out, a couple hours later bubbles reappear and air is trapped in the filter again. It seems to me there must be a "leak" (not water leaking out but air leaking in). It wouldn't bother me much, but the problem is that air ends up in the bag of the pool cleaner and the cleaner floats at the surface most of the time.

Any ideas? I appreciate your help!

About my pool: SWG, variable speed pump, water feauture.

Thanks, Olaf