I have a Dura Glass 1.5HP original motor on a Dura Glass P2RA5F-125L pump. It was installed in May 1997 and I have changed the bearings once. Now making noise again I looked into changing the bearings, but have decided to rebuild the pump and buy a new motor. I am not interested in a 2 speed but would like some thoughts on maybe changing to a 1HP motor and impeller. Pool is 20x40 inground (35000 gal.) with a 800lb 36" sand filter. I have a SWG and now run about 8 hours a day. Pool stays beautiful with this runtime. If I go to smaller motor would I have to increase the runtime to get the same results?
I guess my question is would I save enough kwh by going to smaller motor to justify the change. I can buy a exact replacement motor and rebuild kit for $260. There is about $25 difference in price of motors if I went with 1HP. Amps on 220 are 9.6 vs 7.6.
ps/ my plumbing presents a problem for going to a different pump or I would be open to pump suggestions.
Thanks for any thoughts.