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    kibs33's Avatar
    kibs33 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 7, 2013, 06:46 AM
    Mysterious Exterior Pipe is Leaking
    I don't have AC but a single pipe that drips, what the heck is that drip from?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Nov 7, 2013, 09:17 AM
    Quote Originally Posted by kibs33 View Post
    I don't have AC but a single pipe that drips, what the heck is that drip from?
    Check to see if it is the TPV valve from your hot water heater. You should see a line from the heater going outdoors. It could be a bad valve or the PRV could be allowing too much pressure. Need to have someone measure house pressure.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #3

    Nov 8, 2013, 08:37 AM
    Hi kibs and Welcome to The Plumbing Page at AMHD.com. You're responding to a 4 year old dead threads so I gave you one of your own. Please check the date before you post. Thanks
    Are you on a well or city water? What is your house pressure? Is there a PRV installed? What material is the pipe? If you shut the water off to the water heater will the pipe still trip? Let me know. Back to you, Tom
    Milo Dolezal's Avatar
    Milo Dolezal Posts: 7,192, Reputation: 523
    Plumbing Expert
    		  
    #4

    Nov 9, 2013, 06:05 PM
    It can be an overflow line from ANY pressurized tank in your house - not only A/C unit - like hot water heater, steam generator, etc - or from any drip pan in your house

    Is it a continuous leak ?

    Back to you / Milo
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