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1 inch brass union continues to leak with proper pressure and pipe dope. Is the union bad? How do I check?

  • Were is it leaking from?? Sweated or threaded? – JACK Nov 8 '19 at 12:47
  • Of course there can be a bad union, it could have a pinhole in it or the threads could be defective. But the chances are very high that it's an installation problem, not a material defect. – jwh20 Nov 8 '19 at 14:29
  • The unions that I have used are metal on metal, no pipe dope. – Mattman944 Nov 8 '19 at 17:23
  • Are you sure the union is leaking from the union proper, and not from one of the threaded or soldered attaches to the union? – Harper - Reinstate Monica Nov 8 '19 at 19:44

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