Nick, you said “Tha rinni bang wen yuo brush teth an get cupsa watre tha flow to low”
Do you mean that the pressure coming from the Rinnai is to low? It seems to happen (this knocking) whether the hot water is running or not. (In fact it was doing it Sunday morning when I was just laying in bed and there was nothing else happening!). Is there something I can do to fix it?
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