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Thread: Power Shut Off to Pump with Leak Sensors?

  1. #1
    DIY Junior Member vpr80's Avatar
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    Default Power Shut Off to Pump with Leak Sensors?

    I'm wondering if anyone makes a device to shut the power to the pump off if it senses a leak?

    I found numerous devices that are installed on the actual water lines with mechanical ball valves to close the main water off, but I am thinking of something simpler (and cheaper since those systems are pretty pricey). How about something to just cut the power to the pump?

    Thank you.

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    Moderator valveman's Avatar
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    You can use the same system to cut power to the pump. Just replace the electric ball valve with a relay that shuts off power to the motor.

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    DIY Junior Member vpr80's Avatar
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    Quote Originally Posted by valveman View Post
    You can use the same system to cut power to the pump. Just replace the electric ball valve with a relay that shuts off power to the motor.
    While I get the general concept, I don't understand where I would get a "relay that shuts off power to the motor" and how to connect it to the actuator?

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    DIY Junior Member vpr80's Avatar
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    Found something from Smart Home.....otherwise have not been able to find any other solutions.

    Load Controller: http://www.smarthome.com/2477sa2.html
    Sensor + Transmitter: http://www.smarthome.com/71947.html http://www.smarthome.com/2450.html
    RF Transmitter In Case Powerline Fails: http://www.smarthome.com/2443.html

    Total cost approx $260...not too horrible and MUCH less than all the water line shut-off solutions.

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    Moderator valveman's Avatar
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    Anything that can sense a water leak and send or stop an output voltage can run a relay. The relay or contactor can disconnect power to the pump when voltage is applied or taken away. However, you will still empty the pressure tank before water stops leaking.

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    DIY Junior Member vpr80's Avatar
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    I can handle 20 gals spilled, just don't want it to continually run non-stop.

    On another note, I was examining my pipes yesterday at the location that I want to install the valve. I have PE3408 IDR 7 200 psi going from the well to the crawl space and then PE3306 80 psi going from there under the house to the utility room. So seems like a good spot to install the CSV. Given those ratings, I don't think that anything should fail and leak, but just in case I'll still put a sensor there.

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    Moderator valveman's Avatar
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    80 PSI pipe after the CSV is OK. 80 PSI before the CSV is not.

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