If you can, check and see what the pump is drawing amp wise, and see what the motor is rated for. I was told that I should adjust the ball valve so the motor is pulling it's rated amp load.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).