New compression shut-off valve leaks

Discussion in 'Plumbing Forum' started by cheesefood, Jan 6, 2008.

  1. Jan 6, 2008 #1

    cheesefood

    cheesefood

    cheesefood

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    I just put on a new compression-fit shut-off valve and it's leaking. Is it possible I crimped the copper pipe when I took the old one off? If so, how do I fix this problem?
     
  2. Jan 6, 2008 #2

    glennjanie

    glennjanie

    glennjanie

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    Hey Cheesefood:
    Compression fittings are hard to mess up. Take an adjustable wrench and tighten the packing nut (around the valve stem ). If that doesn't stop the leak you can hold the valve with one wrench and turn the compression nut another half turn.
    If that doesn't work, its time to take it off, cut the copper and start over with a new ferrule.
    Glenn
     
  3. Jan 6, 2008 #3

    Daryl in Nanoose

    Daryl in Nanoose

    Daryl in Nanoose

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    Exactly what I would do.
     
  4. Jan 6, 2008 #4

    ToolGuy

    ToolGuy

    ToolGuy

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    I always use a little pipe dope around the compression sleeve. Even though you shouldn't have to, it prevent any miniscule leaks. Also, some to lubricate the threads helps get it tighter.

    If the leak is from around the stem, just tighten the stem nut. That's very common.
     

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