- Mar 11, 2008
- 6
I currently have a 21 foot ab pool....had it installed in 2006. I have I believe a 21 inch sand filter and a 1hp pump.... im trying to figure out the the turnover rate of the pump and filter.... the pump itself says 60gpm(1hp)..the filter says filter rate is 25gm and design rate is 45gpm. im alittle confused, wouldnt the pump be too big then for the filter? all the pool shops sell 21 inch filters with the 1hp pump.. now how do i figure out what gpm im pushing? is it the 60gpm that the pump list, or is the 25gpm that is on the filter? im just trying to calculate the number of hrs to turnover the pool water twice on my pool....once again, 21 foot ab, i believe around 10,500 gallons or so..thanks, Pete