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Purchase 3/4" Model
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Flow Efficiency Ratings

Below is data provided by one of our distributors as a result of flow testing. Using powerheads of various gph ratings they were able to provide flow-in ratings, flow-out, switching speeds, and efficiencies.

Flow into SCWD SCWD Output Efficiency Switching Duration
150 gph 90 gph 60% 22 seconds
180 gph 120 gph 65% 16 seconds
240 gph 180 gph 75% 12 seconds
270 gph 210 gph 80% 10 seconds
330 gph 240 gph 80% 9 seconds
400 gph 360 gph 90% 7 seconds
600 gph 540 gph 90% 5 seconds
720 gph 660 gph 90% 4 seconds

Converting psi to feet:
Fresh Water
Multiply the psi by 2.31 to derive feet. example: 5 psi X 2.31 = 11.55 ft

Salt Water
Multiply the psi by 2.25 to derive feet. example: ex: 5 psi X 2.25 = 11.25 ft