Reducing gph for return pump

[Cal_stir]

restricting the outlet is ok, but a bypass would probably be better.
never restrict the inlet of a pump.

[Nano]

Originally Posted by Cal_stir

restricting the outlet is ok, but a bypass would probably be better.
never restrict the inlet of a pump.

+1 i've read of the water wearing down the ball valve til all hell brakes loose

[Myka]

You can cut most pumps back with a ball valve which actually reduces the power usage as well. I wouldn't push it more than 20-25% though. Maybe you could use some flow to run a GFO (and/or carbon) reactor(s). Which brand of pump do you have?