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leaks in 3/4 copper under a slab

jszyjszy Member Posts: 1
has anyone used 1/2 pex insereted in 3/4 copper to repair a leak under a slab on a bb type hot water heating system?

Comments

  • Harvey RamerHarvey Ramer Member Posts: 2,215
    I have not. Sounds like you may need to run new pipes above the concrete. You can build a baseboard box and have them run through that?

    Harvey
    Ramer Mechanical
    ramermechanical.com
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  • icesailoricesailor Member Posts: 7,265
    Without chopping up the floor, it isn't practical.

    If it is copper, and soldered under the floor and in sand, its probably pulled apart from expansion and contraction. When contracting/cooling, it can yank the pipe right out of a soldered ell.
  • cablemancableman Member Posts: 69
    edited December 2016
    Neighbor down the block had a plumber run a section of 1/2" pex through 3/4 copper, said he's done a few this way. It works if you can get it through. I would have to think it would restrick flow somewhat.

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