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boiler make up water

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BFlanzbaum
BFlanzbaum Member Posts: 26
in THE MAIN WALL
The state inspectors here in NJ are now asking for a check valve in the boiler water feed line. System already have back-flow preventors. Do you know the correct location for this check valve. Thanks

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  • JStar
    JStar Member Posts: 2,752
    Check valve

    I've always been told that it has to be right at the boiler, after any other control.
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