Mark, Rangeball,

Yeah, my normal psi is 11....so 35tdh for my pool as well. I have a full-rated 1.5hp starite max-e pro, 2" suction pipe, and 2 - 1.5" return pipe.

I have always assumed mine (tdh) is low because my sand filter is so large....140gpm rating (950 lbs of sand)

That tdh on my pump curve works out to right at 100gpm.