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Thread: How to tighten pipe replaced in middle of run

  1. #1
    DIY Junior Member greymont's Avatar
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    Question How to tighten pipe replaced in middle of run

    I'm replacing some pipe in my garage that feeds water to the sprinkler system and a garden hose faucet. I bought some galvanized 3/4 inch fittings that I can put together to fit the space. I started with the water feed pipe and inserted a T to branch to the sprinkler connection and also to the faucet pipe as it goes into the wall. The faucet pipe I can rotate to get the threads tight but the sprinkler connection is fixed, as is the water feed at the other end of the assembly.

    How do I tighten the pipe connecting to the sprinkler pipe? If I screw it into the final connection it unscrews from the other end!

    Is there a special connector to handle this?

  2. #2
    DIY Senior Member asktom's Avatar
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    Default

    The fitting you need is a union.

  3. #3
    DIY Junior Member greymont's Avatar
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    Default

    Ah, right you are. Didn't see union fittings before.

    Thanks!

  4. #4
    DIY Junior Member sethamin's Avatar
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    Default

    You could also use a left-right fitting, where the threads are reversed on one side, but I think those are more typically used in gas lines where unions are not allowed.

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