Reply To: New water heater banging away…

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    Most likely one of two things,
    First and most common is a valve that is not completely closing. Turn the water off to the clotheswasher and see if it goes away, then turn the water of to the toilets and see if it changes. If this does not isolate it the next most common possibility is that you have a closed domestic water system. Being that there is either a backflow preventor or pressure regulator on the incoming line. As water heats up in the tank it expands and pressure buildsup because it can not desipate into the water supply system because it is closed. The excess pressure will make all sorts of noise when valves are operated. Most likely the first scenario will fit. Let us know!

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