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Product Guide

Water Leak Detectors

Smart devices are more than a leak alarm, they can help you understand your water usage and diagnose plumbing problems

The order of the mostcommon sources of homeowners’ insurance claimschanges often. Wind, hail, lighting, fire, and water damage always make the list, though the type and severity of damage they cause varies. So do the chances that the damage is covered. When it comes to water damage, the range of likely claims may include plumbing and appliance leaks, roof leaks, and rain- and snow-storm damage. Policies often don’t cover water damage that starts on or in the ground around the house like flooding, backed up foot drains, a malfunctioning sump pump, or a leaky foundation. They do often cover plumbing leaks. Of course, the only way to know for sure what’s covered is to read your policy.

At well over $10,000,the average value of water damage claims is not insignificant. When it comes to plumbing leaks, those that are caught quickly may not cause enough damage to warrant an insurance claim, while those that go undetected can result in more severe damage including rot and mold. Moreover, water leaks don’t have to be damaging to be costly. If you pay for water or live in an area where water conservation is important, undetected leaks can be wasteful. So, if you could minimize the damage and cost of a plumbing leak by finding it as soon as it starts, would that be worth $100? How much would you be willing to spend on a device that automatically shut off the water supply when a leak was detected?

When designing and building a house, there are a lot of possibilities for “cheap insurance.” Waterproofing plus a dimple mat on the foundation (in case you finish the basement someday), air-sealing tape and expanding spray foam around windows (the old “belt-and-suspenders” approach), a heat pump and backup electric baseboard heaters…

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4 Comments

  1. Steve Knapp CZ 3A Georgia||#1

    A previous home (a townhouse) had plunger-style shutoffs. These cheap, one-piece shutoffs are a disaster waiting to happen. To avoid potential problems, I had all them removed and replaced with standard shutoff valves. The CPVC made the swap-over a little tricky since too much pressure (on the compression fittings) could crack the pipe and too little drying time (in the glue-ons) could compromise the bond. As an extra safety measure, I installed a whole-house shutoff and place leak sensors on each floor.

    One of my neighbors also replaced her shutoffs, but one fitting on the top floor failed while she was not home. (She did not have a whole-house shutoff.) Fixing the water damage took weeks and cost more than $40,000.

    I'm in the process of renovating a one-level place, and it had the same junky shutoffs. All have been replaced. Even though there is less risk with a single-story home, I'm about to install a Moen Flo Shutoff as a just-in-case. The new engineered oak floors that just went in were shockingly expensive and $500 is not much to spend to avoid having to rip them out.

    With the Flo, the algorithm that monitors usage apparently does not respond well to unexpected usage. My plumber shared a story about a customer who put one in a few weeks before his daughter returned from college. He got a panicked call from her when the water stopped midway through a shower. The father checked his phone and saw an alert from the Moen app. Since no one typically took 30-minute showers at that time of day (or ever, really), the software thought there was a leak and activated the shut-off. I understand the app has an override, but the whole alert and override function is not instantaneous.

    1. BPontolilo||#2

      Hey Steve,

      Thanks for sharing your experience.

      I heard a similar anecdote from a plumber when researching the article. One of his clients came in atypically late in the evening and decided to take a shower. He had just enough time to get wet before the leak detector closed the valve. I believe that with most systems you can override the auto shut-off setting, but of course, the person taking the shower needs to know to, and know how to do that.

  2. Expert Member
    Armando Cobo||#3

    That's a funny story of the 30 min. shower (not so funny for the homeowner). It goes to prove that all the wired or wi-fi technology does not always works best. Same goes to home appliances. It's just lipstick on a pick.

  3. Expert Member
    Malcolm Taylor||#4

    Ha! Armando and I are showing our age in this discussion. I'll suggest some decidedly 20th century solutions:

    One common problem with almost every house is that the main water shut-off is inaccessible, or at the least inconvenient to use. I recently moved mine to a discrete location right by the front door. We are now much more likely to turn it off when going out.

    You can also significantly reduce the chances of damage by not running appliances when you aren't home, and replacing supply lines regularly.

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