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Old 09-24-2022, 05:24 PM   #1
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Do I need to drain hot water heater for this leak?

Always something. Testing systems and found this leak from a connection point on a pipe that connects directly to hot water heater. Not 100% sure, but doesn’t look like there is any white thread seal tape on these threads like the other connection point to the left.

Do I need to drain the hot water heater and open the hot water low point to drain the hot water line before disconnecting to put some white thread seal tape on?

Thanks for your help!
JJ
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Old 09-24-2022, 05:51 PM   #2
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JJ

That wing nut has a cone shaped grommet under it that gets compressed to seal. No tape or pipe dope needed.

I’d disconnect from water (no pressure) in system and just tighten wing by hand or a slight snug with short handled pliers on the nut a bit and try again.

It is a std pipe to faucet type fitting. Just with that pic you can go to hdwe or home center buy a new fitting and take the grommet out and exchange it. No fitting R&R reqd unless fitting nut is cracked.

Gary
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Old 09-24-2022, 05:58 PM   #3
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These are the washers/gaskets/grommets/seals which are inside that connection point. Not uncommon for them to be pinched when being connected, leading to a leaky connection. If tightening it as mentioned above doesn't work replacing it is easy.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Oh, and yes. You'll likely have to drain the hot water system at least till it's lower than that joint.
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Old 09-24-2022, 06:11 PM   #4
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Thanks so much you guys! I did try tightening it, but only lightly as I did not want to break something. I will try to tighten more and see if the works and if not an trip down to Ace it looks like.

Seems to only leak when I have the hot water heater turned on. I turned off the hot water heater when I saw the leak and will wait until cool to empty. Do you think I need to drain the low point hot water line too or will just the hot water heater be enough?

Appreciate the help!
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Old 09-24-2022, 06:16 PM   #5
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Only needs to be drained to below the leak. Open the low point if necessary, as well as a hit water tap.
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Old 09-25-2022, 11:04 AM   #6
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Suggest you first unscrew the fitting, then, making sure that the connected parts line up easily, screw the fitting back on. Sometimes, tightening the fitting further only exacerbates the leak. You want to tighten snug, not tight. Some leaks can be caused by overtightening at installation.
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