I recently completed an upgrade to my automation controls and conversion to salt chlorine generator. It was a big electrical job but it all went smoothly. Now I am thinking about upgrading my pumps. I bought the house 2 years ago but the pool was installed in 2003 so I am assuming the pumps are 12 years old and may be nearing end of life. I know that variable speed pumps offer significant energy savings.
I currently have 3 pumps - Pentair WhisperFlo 1HP for pool filer, 3/4HP for cleaner, and 2HP for spa.
It seems like a no brainer to replace the filter pump with a variable speed pump to gain energy savings.
A few questions:
1. By adding a variable speed filter pump can I also completely eliminate the 3/4 booster pump for the cleaner too?
2. I assume that there's no benefit to replacing the 2HP spa pump until it dies?
3. When would I consider variable flow vs. variable speed?