Leaking hot water heater help

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Ryan Miehm, Jul 16, 2020.

  1. Ryan Miehm

    Ryan Miehm In the Trades

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    Ontario
    Hot water heater is leaking from panel that covers bottom thermostat/element. I figure it’s the tank that has blown. However it seems that when I shut the cold water valve off at the top of the tank, the leak stops. If it were the tank, would it not leak until all the water drains out of it?
     
  2. plumber69

    plumber69 In the Trades

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    Prince Rupert, British Columbia
    No
     
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  4. Ryan Miehm

    Ryan Miehm In the Trades

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    So it’s normal for it only to leak out when the cold water supply valve is open?
     
  5. Jeff H Young

    Jeff H Young In the Trades

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    leaks under pressure
     
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    Another reason it may have stopped...think what happens when you put your finger over the end of a straw...now, if you then opened a hot valve somewhere in the house, would be like removing your finger from the straw.
     
  7. plumber69

    plumber69 In the Trades

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    Fill a pop bottle full of water, put the cap back on. Poke near the bottom with a pin. See how long it takes to drain
     
    Jeff H Young likes this.
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