Faucet sink leaking, cold water tailpiece.

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by mnalep, May 24, 2017.

  1. mnalep

    mnalep Member

    Joined:
    Apr 29, 2008
    Location:
    Redford, Michigan
    (Sorry, I posted this question earlier in the wrong form (showers and bathtubs) ... so I am reposting here.

    I have a very old faucet that has water dripping under the bathroom sink. The drip is on the threaded brass tailpiece that extends out the bottom of the sink where the cold water supply line hook up to.

    I was wondering if the leak could be cause by an o-ring on the faucets stem? (If I can just fix the leak by replacing an o-ring I would be happy). I assume that leak is not due to bad washer on the valve stem?

    I was also wondering, there is a piece that is between the galvanized elbow and the brass tailpiece of the faucet supply. It does not look like galvanized or brass, and seems like a compression fitting? What is that called?

    Worst case is, I suppose the faucet would need replacing?

    If, so, I notice that the hot supply tailpiece still has the tailpiece mounting nut in place, although it looks rusted to the sink. How would I remove that if I decide to replace the entire faucet withot breaking the cast iron sink? (BTW, it look the the tailpiece mounting nut on the cold supply side has long ago rusted, or broken, off)

    Would those galvanized pipes come apart if I spray them with liquid wrench, or PB? Or use some propane? (I was thinking about putting shutoffs on if I replace the faucet, and would need more space in there)

    Here are some pictures.

    Thanks....
    Matt
     

    Attached Files:

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