Pump turnover rate

[Poolsean]

Its common for pool contractors to size the equipment accordingly. The pump is sized to provide enough circulation to filter the whole pool once every 8 hours. Then once this is determined, the filter is sized to accomodate the flow rate.
DE filters can handle twice the flow rate that the filter is rated for (65 sq ft filter can handle 130 gpm). Cartridge filters are equivalent (100 sq ft filter can handle 100 gpm). Sand Filters are usually rated for 15 gpm per sq ft of filter area (7 sq ft sand filter can handle 95 gpm).

The horsepower x service factor is your true motor horsepower output.
Your 1 hp pump x 1.4 sf = 1.4 HP (use the pump curve for 1.5 hp)

Hope this helps.

[sharkey21]

Question:

My filter PSI is ~12, so that's ~28' for return head. I don't have a vacuum
gauge, so I'll just use 10' for suction head. Do I need to add anything else
for the 3 scuppers and 1 gusher I have, or is that accounted for in the 12 PSI?

Thanks!

Steve

[Poolsean]

Nah,

That's all you'll need.