Best way to connect PVC to Galvanized?

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by burleymike, Jul 11, 2010.

  1. burleymike

    burleymike New Member

    Messages:
    118
    Location:
    Idaho
    This is for the suction line on my sprinkler pump. I have a sandpoint well that has a 1-1/2" galvanized tee on the end of the casing. Currently I have a 1-1/2" galvanized nipple coming from the tee to a PVC union then another galvanized nipple to the pump. I cannot seem to make the connection at the union air tight. I would like to run all PVC from the tee on the well casing to the pump. I get the feeling the leaks are occuring on the male threads going into the female PCV threads. Using a few wraps of pink PTFE tape makes it better but does not stop air getting in.

    Am I just as likely to have leaks screwing in a SCH 80 PVC nipple into the tee on the well casing?
  2. nhmaster3015

    nhmaster3015 Master Plumber

    Messages:
    836
    Location:
    The granite state
    Keep the galvy tee. Ditch the union and the nipple. screw a pvc male adapter into the tee. Use tape or pipe dope. You don't need the union. I you need to take the pipe apart you can just cut it. If it was mine I'd ditch the pvc also and go with PE
  3. burleymike

    burleymike New Member

    Messages:
    118
    Location:
    Idaho
    I was thinking about something flexible like PE, the slip fittings won't allow any air to get sucked in? That was my only concern. I would much rather go with the PE it would sure simpilify things a whole lot. I am planning to install a bigger pump and add two more sand points. Using PE will make the plumbing a snap.
  4. nhmaster3015

    nhmaster3015 Master Plumber

    Messages:
    836
    Location:
    The granite state
    Yes it will and less chance of leaks because no couplings. Just make sure to use brass or stainless steel barb x male fittings and double clamp them.
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