Carld, this de fillter was fine last year. i have a 18x36 inground vinyl lined grecian shaped pool. the pump is a 1hp motor and the filter is a hayward
EC65. my water test per my test strips seem fine and under control. this filter doesn't have a multi-port valve on it. it seems like after bumping the filter that a cloudy stream of whatever comes through the return once i turn the filter back on for a short while. my water is clear and after vacuuming looked good, and we swam today but i'll run the filter tonight and see what happens. thanks Randy