Hayward Sand Filter S244T.... this is the third season of operation.
With the pump off and the filter in the filtering position,I can hear a minute air leak at the filter. When I turn the handle to close or backwash or rinse with the power off I can hear and feel water siphoning back toward the pool. There is no water leaks at the filter. When I turn the pump back on I hear a sound like the filter is re-filling and the gauge is slow to pick up psi (it's holding fine at 14lbs after time to fill). Should I suspect a bad spider gasket in the filter and if so how difficult will it be to replace??
thanks to TFP I'm in charge of my pool now,not some one else passing through occasionally!