We use cookies to enhance your experience on our website. By continuing to use our website, you are agreeing to our use of cookies. You can change your cookie settings at any time.y continuing to use our website, you are agreeing to our use of cookies. You can change your cookie settings at any time.
The necessary size (or horsepower) of the pump can be determined by the following general rule-for above ground pools up to 24 ft round, use a 1 HP pump and for above ground pools over 24 ft round, use a 1.5 HP pump.
I am interested in replacing my Pentair 3/4 hp single speed pump with a VS pump but not sure what size or model I would need. My pool is just under 10,000 gallons. I have a gas heater and a separate dedicated pump for the Polaris.ased on the data calculated above for a typical RECTANGULAR pool, we are looking for a pump that will handle 42 GPM with a 47' Feet of Head. According to the chart for 50 Feet of Head (closest to 47'), we need a pump between 3/4 HP (31 GPM) and 1 HP (50 GPM).