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Old 12-08-2008, 07:01 PM
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I didn't realize this unit required check valves. There's no mention of it in the instructions. And there's no mention of where they should be installed (before or after the pump - on my AquaMedic they are installed both before and after the pump). But I wasn't sure if 3 rollers was enough to negate the use of a check valve as the Liter Meter III has 4 rollers and does not require check valves.

Does GHL Profilux sell check valves or is there a brand they recommend?
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