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Thread: Imploding water heater?

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  1. #1

    Default Imploding water heater?

    I recently replaced some pipe in my basement. I put them back in the same locations and didn't make any changes to how things ran.

    While I am not a plumber, and don't play one on TV, these were not bent in like this last week.

    Could it be something I did, or is there a bigger problem with my water heater?

    Thanks, Cliff

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  2. #2
    Master Plumber Redwood's Avatar
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    Did you close both the inlet and outlet of the water heater than allow it to cool?

    Kinda the opposite of thermal expansion...

  3. #3

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    After I reconnected?
    It was disconnected for several hours, and turned off most of the day.
    Then I turned the water back on, refilled the tank, ensured there were no leaks and turned the pilot on.

  4. #4
    Master Plumber Redwood's Avatar
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    What I'm asking is if there was anytime when the water heater was in effect a closed container while it was cooling. If you were to take a 1 gallon tin and heat it in a pan of boiling water then screw on the cover and take it off the heat it would collapse....

  5. #5
    Master Plumber Redwood's Avatar
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    The T&P valve is seen in the first and last picture side mounted next to the yellow energy guide label...
    The smoke pipe installation doesn't look to good.

  6. #6

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    Quote Originally Posted by Redwood View Post
    The T&P valve is seen in the first and last picture side mounted next to the yellow energy guide label...
    Is it OK? This was the one that was there, I put it back where it was.
    Quote Originally Posted by Redwood View Post
    The smoke pipe installation doesn't look to good.
    I agree, but this was not me.
    I did not move the heater, this is the way it was when we moved in last year.

  7. #7

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    Quote Originally Posted by Redwood View Post
    What I'm asking is if there was anytime when the water heater was in effect a closed container while it was cooling. If you were to take a 1 gallon tin and heat it in a pan of boiling water then screw on the cover and take it off the heat it would collapse....
    This isn't impossible.
    I turned off the supply to the heater, then turned it off. I thought I drained it too.
    It may have cooled while warm, with no way to relieve pressure, either negative or positive.
    It's not leaking now, other than looking terrible, did I cause permanent damage?

  8. #8
    Master Plumber Dunbar Plumbing's Avatar
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    Have a licensed plumber replace the water heater before you end up on the 11 0'clock news with family members scattered all over your front lawn.
    Read what the end of this sentence means.

  9. #9

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    Quote Originally Posted by Redwood View Post
    What I'm asking is if there was anytime when the water heater was in effect a closed container while it was cooling. If you were to take a 1 gallon tin and heat it in a pan of boiling water then screw on the cover and take it off the heat it would collapse....


    It would not collapse if you use a vacuum relief valve on the cover. That water heater has one installed on it, but is it any good?

    I wonder how old that heater is anyhow? Even to my DIYers eyes that water heater is now toast!

  10. #10
    Master Plumber Redwood's Avatar
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    It really is a moot point whether it was vacuum or, pressure...
    The water heater is scrap!

  11. #11
    Retired Defense Industry Engineer jadnashua's Avatar
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    A related question, maybe I'm missing it, but where it the T&P valve?
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  12. #12

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    Umm, as I said in the first post, I'm not a plumber, just a guy with a lot of tools who is a little too fearless.

    What is a T&P valve? I guess just asking that question means I'm in trouble.

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