Question for HVAC guys who do plumbing
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  1. #1
    Join Date
    Nov 2010
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    Central Florida
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    Question for HVAC guys who do plumbing

    I'm sure the mods will delete this post if I'm out of line asking a plumbing question, but since many HVAC pro's also work for companies that do plumbing I thought maybe I could get some advice.

    I'm going to be taking a vacation in a few weeks. My home has that awful polybuetylene piping and is about 15 years old - right about the time when those pipes tend to start failing. In fact some homes in my neighborhood have begun failing in the last few years. Anyway, I'm wondering if I should turn off the water before I depart. I'm concerned that allowing the lines to dry out while I'm gone might actually be prone to causing damage after I return. Or should I ALMOST turn off the water, allowing just enough to remain pressurized, or just take my chances and leave the water on?

    What would you guys do??

    Thanks,

    Sonic

  2. #2
    Join Date
    Sep 2010
    Location
    Western, MO
    Posts
    871
    I always turn off the water and my electric water heater before I go out of town.

    jim
    Common sense isn't very common anymore.

  3. #3
    Join Date
    Jul 2006
    Posts
    613
    [QUOTE=SonicExplorer;. I'm concerned that allowing the lines to dry out while I'm gone might actually be prone to causing damage after I return.
    What would you guys do??
    Sonic[/QUOTE]

    If you turn the water off, the water lines will not dry out. It's a sealed system. Your faucets are the high point. Close your house supply shutoff valve and relieve the pressure at any faucet. Most homes have a valve where the line comes into the house underground. You can also shut it off at the water meter. Worst case scenario is the shutoff valve leaks a little and re-pressurizes the system. If a water line blows while your gone, the volume will be low. After closing the water valve, you can also leave a cold water faucet cracked. No pressure build up if the shut off valve is defective.

  4. #4
    Join Date
    Jan 2004
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    67,616
    Moved to the General forum. Here is where non HVAC topics are discussed.
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  5. #5
    Join Date
    May 2006
    Location
    Western NY
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    4,355
    I have a gas fired hot water heater and simply turn down the t-stat when we are out of town. Why maintain 120* water in a tank when no one is there using it?
    "Excellence is the gradual result of always striving to do better"
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  6. #6
    Join Date
    Dec 2008
    Location
    Buffalo NY
    Posts
    3,078
    I always shut off my main water supply when I am out of town. I have seen some bad floods from burst pipes.
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  7. #7
    Join Date
    Jul 2011
    Location
    northern Minnesota
    Posts
    36
    it's cheap insurance to shut the valve. I've seen 10s of thousands in damage that could have been prevented

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