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Thread: Whole House Auto-Shutoff Valve?

  1. #1
    DIY Junior Member Shinshi's Avatar
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    Default Whole House Auto-Shutoff Valve?

    I am considering installing a whole house auto-shutoff valve. Essentially this valve would be connected to multiple water sensors throughout the house and shut off the main water supply if any leaks were detected. This is the valve I was considering...

    http://www.aartech.ca/product_info.p...S1-1-4NPT.html

    This shut-off valve is 1 1/4" and the main water line coming into the house is 1". I was thinking of installing this right after the city water meter. Then daisy chain multiple sensors at the washing machine, dishwasher, icemaker & hot water tank and connect to this device. Then if a water leak was detected at any of those locations it would shut the water off to the house.

    My question is, would I possibly damage washing machine, dishwasher, ice maker, hot water tank & water softener if water was shut off and these units were in use? I wonder if the pumps would keep running and possibly even the heater in the washing machine and without water they would be damaged?

  2. #2
    DIY Senior Member construct30's Avatar
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    The one thing I would worry about is the water heater. Also check with the manufacturer of other appliances. Normal washers and all should not be a problem, but some newer models could be. They make auto shut offs for the gas and electric water heaters as well as some appliances that work with those valves and sensors, however big $$$$.

  3. #3
    Retired Defense Industry Engineer jadnashua's Avatar
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    Default

    I've mentioned this before in other threads...check out the WAG for a water heater at: http://taco-hvac.com/products.html?current_category=65 or http://www.wagsvalve.com.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  4. #4
    DIY Junior Member Shinshi's Avatar
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    My washer is a newer model Maytag made by Whirlpool, so I have not been able to find much information and determine if it could be damaged by a water shutoff valve like this.

    The WAG for the water heater certainly looks like a good idea! I may try that for the water heater instead.

  5. #5
    Moderator & Master Plumber hj's Avatar
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    Default units

    There would be no damage, because the units have water level controls and if there is no water, the timer stops until it does fill.

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