Faucet was loose and moved a bit...Are my compression fittings OK?

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by rmc, Aug 24, 2012.

  1. rmc

    rmc New Member

    Jan 5, 2011
    Have a lav faucet in my bathroom that was not installed tightly and moved about 1/4" or less. I reached up and tightened the plastic nuts and now the faucet is securely attached to my sink.

    My question is: since I have chrome plated copper tubing connecting this faucet to the shut off valves, was this movement enough to jeopardize the 3/8" compression joint at the valve? There are no drips, leaks, etc... and have not been since this occurred. Is this something I should worry about, as I have little knowledge of compression fittings. Thanks so much for any advice!
  2. kreemoweet

    kreemoweet In the Trades

    Sep 7, 2009
    Seattle. WA
    I don't think 1/4"movement of the faucet could compromise the connections, unless they were extremely sketchy to begin with.
    No sense worrying about Leaks that Might Have Been, but Weren't.
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  4. Runs with bison

    Runs with bison Member

    Aug 23, 2009
    Shouldn't impact those connections unless you are already seeing drips of course. However, the loose nuts suggest there might be/have been a poor seal around the faucet body to the sink. So if water puddles around the faucet you might expect water to drip through below. It's easy to check though, just pour some water around the perimeter of the faucet and check below to see if there are any drips (check again after a few minutes in case it is a very small gap.)

    When I install faucets I do the above test. I also use a very thin-rolled bead of plumber's putty on the plastic gasket gaps when tightening the plastic nuts down. I'm not a pro though, I've only done this a dozen or more times in six homes.
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