MaximI

Thanks. Just where inside the filter is the air bleed screen located? I was unaware that one even existred.

I have a Hayward S244T Sand Filter connected to a Hayward 1hp Super Pump which filters a 33,000 gal pool. Both components are only 1 yr old. The sand filter does not have sand in it. I am using a product called Zeobtite for the media. Mainly because it is supposed to filter better and it only takes 1/2 as much in volume to do it. Upon the initial hook-up and assembly of it all, everything worked fine. Towards the end of the last pool season and now at the beginning of this years season, the filter releases backpressure when the pump is turned off. It did not do this originally! When the back pressure is released, it blows the skimmer cover out of position. I can release the the remaining pressure by loosening the filter cover screws on the pump basket cover. This also refills the pump chamber. My filter pressure gauge is fine @ 10-12 lbs and only shows an increase when it's time to backwash. What is going on here? I would appreciate any advice that I can get to corect this problem. Thank You.