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Author:
NotionCommotion (WA)
My pipes or water heater just started making some constant banging noise yesterday. See attached video to hear it at [tinypic.com]. The water heater is a 5 year natural gas Ruud unit.
My piping is cold water through a gate valve which tees to both an expansion tank and my water heater.
If I shut the valve, it instantly stops.
Can't see anything vibrating.
Read that it might be due to sediment causing boiling in the heater, but don't think so as it occurs even if the heater was off overnight.
EDIT. I've since removed the inlet connector. When I open the valve now, I don't hear the noise, so suspect it is the heater and not piping. Supposedly, there is some sort of tube which might be bad which is located from the cold water inlet all the way down the heater, (but then the guy said probably not). I didn't remove the nipple and can't check it out.
To make it worse, my water heater is located next to my furnace, and the sound travels through the vents to every room. Please help!!!!
Edited 2 times.
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Author:
steve (CA)
Do you have any in-ground hot water piping? Do you have to fully close the gate valve to get the noise to stop? Does the water heater have check ball nipples on the inlet and outlet?
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Author:
NotionCommotion (WA)
Do you have any in-ground hot water piping? NO
Do you have to fully close the gate valve to get the noise to stop? YES
Does the water heater have check ball nipples on the inlet and outlet? NO
Thanks
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Author:
steve (CA)
Will the noise occur with the gate valve open, supply feed connected and burner and pilot off? Any popping from sediment should only occur with the burner on. A failed dip tube should only cause loss of hot water volume before turning warm/cold.
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Author:
NotionCommotion (WA)
Yes, the noise will occur with the gate valve open, supply feed connected and burner and pilot off. But mysteriously, it stopped happening after reconnecting the supply. Still looking for a smoking gun reason for it. Thanks
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Author:
Big Al (WA)
Heat trap nipples!!!!!!!! Little marbles were installed on the 3/4" pipes on top of the unit to prevent hot water from leaving tank?? (Thermal expansion??) at any rate sounds like it stopped maybe a marble was lodged and set free in the tank but no wories no harm no foul
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