I posted a similar question at the Pool Forum, but I'm not sure if there's significant traffic there at this time. So, I'd like to ask here as well.
We may need to replace our old 2 hp pump. We have an 11,000 gallon gunnite pool, with a raised spa/waterfall. Our filter is a Purex Triton FNSP 60. The pump is a Purex Triton Ultra Flow, 2hp. I'm not sure if it is a 2 speed pump, but when we turn on the spa, it does seem to ramp up to keep the spa jets going. (edited to add that I believe we have a 1 hp booster pump as well, so that might be what is moving the water in the spa).
What size pump should we get? I'd really like to lower our electricity bill. I'd be okay with a smaller, dependable (and quiet) pump that just keeps the water flowing.