I am replacing some of the equipment in my pool. It is a small pool, about 12000g, with a small attached spa that overflows into the pool. All the pools in my neighborhood were overbuilt - this one had a 2HP Pentair Challenger pump with pentair nautilus 48FNS filter. I know that the larger-than-necessary pump was because of the spa, but the water came out too hard. So I am looking at downsizing.
The pool has 2 skimmers and a main drain, all separately valved with 1.5" pipes. The incoming spa pipe is 2". The outlets to the pool include one 2" pipe to the pool outlets (5), one 2" pipe to the spa, and one 1.5" pipe to a fountain in the spa (normally on).
I'd like to replace the existing pump/filter with:
1 HP Superflo pump
Pentair Sand Dollar SD80 with Clearpro
Its seems that there is plenty of filter for the 1 HP filter and the pump will provide plenty of circulation, but I'm a little concerned whether the 1 HP will be enough to circulate water through both the pool jets and the spa fountain. The fountain really needs to run to provide some circulation to the water in the spa.