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Thread: Sharkbite Stop Valve for Toilet

  1. #1
    DIY Senior Member Kiko's Avatar
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    Default Sharkbite Stop Valve for Toilet

    I'm thinking of replacing my old soldered-on toilet shut-off with a Sharkbite - available at HD.

    Once I've cut out the old valve with my tubing cutter:

    How much of a stub-out is needed for the Shark to slip over?

    How should I prep the stub-out (remove any residual solder, etc.)? Emery cloth?

    Do these things leak over time?

    TIA

  2. #2
    Plumbing Contractor for 49 years johnjh2o1's Avatar
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    Why not use a compression stop? In my opinion they're far better than shark-bites.

    John

  3. #3
    Retired Defense Industry Engineer jadnashua's Avatar
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    The pipe must be totally clean, round, deburred so there are no rough edges, and long enough. The deburring tool can also be used as the depth gauge for you to ensure it is inserted all the way. On 1/2" copper, I measure very close to 1" using their deburring tool, give or take a very small amount.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  4. #4
    In the Trades Gary Swart's Avatar
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    I second the compression stop.

  5. #5
    DIY Senior Member amateurplumber1's Avatar
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    Just curious, why do you prefer the compression stop over the sharkbite?

  6. #6
    Plumbing Contractor for 49 years johnjh2o1's Avatar
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    Compression fittings have been around for some time and have proven their reliability shark bites haven't


    John

  7. #7
    Moderator & Master Plumber hj's Avatar
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    You need a much longer stub of copper out of the wall for a Sharkbite.
    Licensed residential and commercial plumber

  8. #8
    Retired Defense Industry Engineer jadnashua's Avatar
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    Properly installed, a Sharkbite can rotate (it might be stiff, but it will). A compression stop won't. A compression fitting will seal (assuming you can get the ring on) if the pipe isn't quite round, a sharkbite may not.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  9. #9
    Retired Machine Repairman wptski's Avatar
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    Being a DIY, I don't use compression fittings very often but the last time I did, I had a terrible time trying to tighten them enough to not leak.
    Bill
    Retired Machine Repairman
    Just a DIY'r

  10. #10
    DIY Senior Member asktom's Avatar
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    Put a couple drops of oil on the threads the compression nut tightens onto.

  11. #11
    DIY Senior Member Kiko's Avatar
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    I haven't started this yet, but the reason I wanted to go Sharkbite over compression is due to lack of room. There doesn't appear to be enough space to manipulate two wrenches (wrench and counter-wrench).

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