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Old 03-03-2011, 07:17 PM   #1
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Water Flow Alarm Valve

I am looking for an system that will shut the water off if there is a leak. I have seen a few that have sensors you place at each water using device. However I found one that monitors for abnormal flow. It is pretty expensive though:


Are there any other systems like this that are cheaper?



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Old 03-04-2011, 06:34 AM   #2
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I did not open the link, but I would think it difficult to monitor abnormal flow. When a faucet is full open, it is full open, when does this gadget consider it abnormal???


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Old 03-04-2011, 07:17 AM   #3
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Fire suppression systems (water) in industrial or commercial buildings do have water flow vane switches in the supply loop so the the local alarm service will know there is a problem and yes, they are expensive. You should be able to get one from a plumbing supply house. They are adjustable for flow sensitivity from full on down to a cup a minute, but they won't do much for a small leak. What you should probably look for is a small dampness detector you place on the floor just below a water fixture. It will scream if it detects a dime size puddle of water. Then if you are an electro-geek you can build up the circuit to control a solenoid valve on your main water service. You would need a detector for every H and C aperture in your home ( in my case about 20 of them) and some would have to buried in the walls -bathtubs or wall showers-. You can get them usually at a local hardware store. Good Luck.
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