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RO system help
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07-09-2009, 10:45 PM
mark
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Join Date: Nov 2002
Location: Edmonton AB
Posts: 4,212
have a Aqua-safe unit and just took a look and there's a metal coupling between the housing and elbow (on the blue line side by where the arrow points to 4th stage membrane housing in the diagram), assume this is the check valve being mentioned?
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