Okay folks I've got a question. Went to apt today complaint of not hot water. Noticed water heater was heating but also hooked into heating system. So I go in apt turn on heat and voila I've got hot water at faucets. So I have not dealt with these a lot so should I install check valve? where? at water heater? swing or spring? Thanks for any info
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to check or not to check?Page Title Module
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