Cold Water intake leak?

Discussion in 'Water Heater Forum, Tanks' started by JohnWis, Apr 5, 2020.

  1. JohnWis

    JohnWis New Member

    Joined:
    Apr 5, 2020
    Location:
    OK
    Hi everyone - would appreciate any info/guidance you could provide on this. We have lived at our house for ~2 years, and our hot water heater is 20+ years old. I awoke this am to dripping sounds coming from my water heater. I've shut the (gas) tank off and closed the (red) hot water output valve. The leak is coming from the end of the thin copper coil, that is attached to the cold water intake...and goes nowhere (it is simply pinched at the end). The leak had been a steady drip with the system on, and has slowed considerably since turning it off.

    Questions: 1) What is the purpose of this thin coil at the cold water intake?; 2) Any suggestions on what might be the cause, and how serious this is?

    Thanks in advance!!!
    IMG_0194.jpg
     
  2. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    That was a water line to a refrigerator or to a humidifier. With only a wrench, shut off the water to the house, take off the old stop valve and replaced it. It is a compression fitting so the original nut will stay on the copper pipe. Also get a 3/8" or 1/4" cap nut to go over the output end of the valve. Just extra assurance. These stop valves go bad because the washer used do deteriorate. You can replace the valve with a 1/4 turn ball valve.
     
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  4. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    Where does the other end go? If it is open, it may have gone to a humidifier in the past. The copper was coiled up in case another humidifier would be put in later.

    Are you sure that is the cold water side?

    Is that red mark on the photo your mark to indicate where the leak is? Can you give the connector another 1/4 turn to tighten?
     
  5. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
  6. JohnWis

    JohnWis New Member

    Joined:
    Apr 5, 2020
    Location:
    OK
    Thanks so much for these tips...you guys are awesome!
     
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