I have a 0.5 hspr pump on my pool that I replaced a bunch of years ago. At the time I had calculated it takes 8 hours to turn over my pool so according to all the posts I had read here there was no reason for a larger pump. This year I have had two pool people tell me my pump is too small so I have been asking around to "feel out" what other pool people have to say. Everyone says I need a 1 1/2 hspr pumo. Today while getting a new seal for my pump the guy told me I should size the pump to the size of the sand filter otherwise the water won't move through the filter fast enough to flush/clean the water. That is a new one to me. I'm curious if anyone else has ever heard that.
It's hard to read the above pic so here is a better shot of the specs.
The curve key for the WFE-2 is E. I'm not sure why all my pics above are so hard to read.