My Hayward northstar pump does not display the GPM. Im trying to figure how long it takes for 1 full turn. Model # is SP4007X10NS. its 1HP…sf 1.40(what ever that is) code j…rpm3450…27ft from skimmer to pump…2 1/2" pipe from pool to back of pump then it goes from 2" pipe to filteration system. Its a 12,000 gallon pool. Can you help me out?
Hi Herrera,
Based on your pump information and pool details I estimate your pump is outputting 90 GPM’s which would turn your pool over in 2.5 hrs.