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Old 01/12/2008, 02:14 AM
jdieck jdieck is offline
Flea Slide
 
Join Date: Dec 2002
Location: Naperville IL
Posts: 12,458
At a 4-5 feet height with 1" pipe there will be about a 6 to 6.5 feet of head pressure on the pump and 8 feet head using 3/4" pipe under ideal conditions. By the performance curve the actual maximum flow with a clean newly installed pump will be 700 gph (see curve below) with an actual real flow of around 600 gph which is the typical flow for a 55 to 60 gal tank with a 1 inch drain and relatively low volume for a 130 gal tank.
That sump design is rated for a flow of up to 1000 gph

I use a 40 gal sump and I am running around 3500 gph trough it in my 330 gal system.

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