So I just found a "great deal" on a used Pentair 2 speed 2HP pump to replace my pump that went out this week. I am new to pools, but have tackled many electrical and plumbing home projects. I really need help on this one.
The pump that broke that I just removed was a switchless Hayward 2 HP pump with a replacement AO Smith motor.
I did not realize when I picked the new one up that having a 2 speed pump with a manual switch meant 3 wires plus a ground and I only have 2 and a ground. Here are my questions.
1) Is there any reason that I NEED a 2-speed pump, or can I just use the high speed all of the time? If I don't care about the low speed option, can I just wire this pump with the two wires and ground that I already have running to the timer and then to the pump?
2) I am not sure if I have a 110V line or a 220V line running to the timer. How do I know if the knew pump needs 110 or 220? I I have heard that it needs 220, but also that perhaps I could run the new pump on a 110V line. Is that true or do I have to add a breaker and another line if I don't have 220V available? I can't find the wiring diagram for this pump motor anywhere online.
3) I read somewhere online that I would need to upgrade my T104 Instamatic timer to a T106 or a digital one in order to have three wires and a ground to the new 2-speed motor. If I only need to use the high speed, can I just stay with my T104 and not have to buy a new one? (I just replaced the timer about 2 months ago)
I am totally hoping that I can get this done tomorrow and end the Koi Pond phase of my pool, so any and all help would be GREATLY appreciated.
Thanks so much for helping out.