input needed on back flow valve - Canreef Aquatics Bulletin Board

02-20-2002, 08:18 PM

pocilipora pocilipora is offline

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Join Date: Aug 2001

Location: Aldergrove B.C.

Posts: 376

input needed on back flow valve

DONT USE A BACK FLOW VALVE. They dont work over time, just ask my carpet. At the top most part of your return lines, just below the water level, put a small hole 1/16th or so. Then when the power goes out, the water level will only drop as far as the hole, because it starts to suck air.

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