I have a 2 hp pump that, after reading here for some time, I speculate is probably oversized for my filter. I have read the info on hydraulics, pipe size, head loss, etc and it’s just over my head, I’ve tried several times, but I’m not getting it. I have to replace some parts on my 16 y/o sand filter and am contemplating just replacing the whole filter.
I know most people would size their pump to the filter, but what if I were to go the other direction and size the filter to the pump- which would probably result in oversizing the filter, but I understand that is a good thing.
My specs: 19,070 gallons total. 2hp AO Smith motor with a sf of 1.3 (model B748). 1.5” plumbing. Main drain, 1 skimmer, 4 return jets, and separate spa that shares equipment via Jandy valves. Have no idea how much pipe is under the ground. Equipment sits about 12’ from the edge of the pool, but the skimmer is on the opposite side of the pool from the equipment.
If I replace the sand filter, what size would be a good match?