our pool pump works GREAT with NO FILTER!!! i put new filter in and it works for one hr tops!!! I am getting frustrated..we "upgraded" to Intex 56635EG 1500-Gallon Filter Pump last yr and worked great..this season like I said have to change every hr..therefore pool is nonstop cloudy. i checked all connections and is fine...is the pump shot? makes me question since it works great when no filter in it? upgrading to sand filter pump next yr...but hoping to get thru this summer yet..