We currently have a single speed 1.5 HP pump on our pool. There are several good and valid reasons for having this size pump. However this pump will change the water in the pool in 1.5 hours. I will need to run it for most of the day because we have a SWG. For this reason, we would like to have a two speed pump.
My first thought was to see if I could replace the motor stator. However the motor manufacturer, A.O. Smith does not offer the stator as a spare part. That meant I will have to replace the entire motor, which is not a big problem.
The pump is a Sta-Rite model, and I looked at the differences in parts between the single speed and the two speed models. I noticed that the impellers have a slightly different part number. I e-mail Pent-air (contact for Sta-Rite pool products) about the difference between the impellers. They replied that for the conversion the impeller needs to be changed, however they did not know what the difference was.
The question I have for the forum is has anyone seen the two impellers and can they tell me the difference? Or should I just try changing the motor?