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Thread: Saddle Valve leaking

  1. #1
    DIY Junior Member janels's Avatar
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    Default Saddle Valve leaking

    Hello!

    The in-line shut off valve for the line coming out of the hot water heater to the stand alone ceiling mounted humidifier is leaking when turned off and is also leaking at the valve when turned on. Can it be fixed or does it need to be replaced? I have not worked with one of these before and do not know anything about them compared to a regular shut-off valve.
    Last edited by Terry; 02-15-2012 at 10:31 AM. Reason: Saddle Valve leak not an in-line valve

  2. #2
    DIY Member DaveHo's Avatar
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    If it's leaking around the stem, tighten the nut slightly & see if that helps.

  3. #3
    In the Trades Gary Swart's Avatar
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    Saddle valves appeal to DIY because they are cheap and simple to install, but they are not a very good choice for tapping into a water supply line. They tend to fail. You can try to tighten it up and perhaps have some success, but the best thing to do is eliminate it. To do this, remove the valve, cut the pipe where the puncture is and install a tee. Put in a ball valve after the tee then transition to the size pipe/tubing going to the appliance.

  4. #4
    Homeowner
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    Saddle valves are illegal in alot of places. Check your code. We want everyone to follow their code. They tend to clogg up because most of them have a steel piercing point that rusts closed.

    I've never used one but have removed enough of them to fill a dump truck.

  5. #5
    Moderator & Master Plumber hj's Avatar
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    One problem with a saddle valve is that when it is tightened to the pipe it often deforms the pipe so when you cut the pipe to install a tee, it may not go into the tee.
    Licensed residential and commercial plumber

  6. #6
    Retired Defense Industry Engineer jadnashua's Avatar
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    Saddle valves are quick and easy to install, but their long-term reliability is very poor. Best thing to do is replace it with quality items (which doesn't include a new saddle valve!).
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  7. #7
    General Engineering Contractor ballvalve's Avatar
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    Saddle valves are how you get water into about 200 million houses in the USA. Its about the quality of the valve, and about not using a self pierce but drilling a hole. Everyone shops on price and the rubber portion is chopped chinese tires.

    You can get a copper 'half' tee that clamps [12g copper wire works even nicer and can be soldered] on the undisturbed pipe, drill the hole, and solder it on, for those that cannot find a good saddle valve. But since plumbers charge by the hour, such things and especially good saddle valves are not often offered to a homeowner. Gotta pay for that shiny truck!

    "And while we are here, mam, for another 200$ we might save your life with an expansion tank..." even though grandma is on a well with no prv and a 80 gallon expansion tank.

  8. #8
    Forum Admin, Expert Plumber Terry's Avatar
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    Normally a plumber would solder on a tee and a section of pipe and install a replaceable shutoff valve.

    If it's copper, you can always cut and solder if needed. Turn off the water, you will need to at least do that. Pick up some flux, solder and a torch and go at it.

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