Hi, I have a leak in a 3/4" copper water line that runs under a concrete floor. Can a 5/8" pex (or flex) line be fed through the line and the repair be made complete? I hate to think of having to drill out the concrete floor to repair the leak. I have gotten conflicting opinions from local plumbers regarading if this can be done or not. One says this is the way to correct the leak - the other one says a 5/8" line cannot be fed through a 3/4" pipe. Any light you might be able to shed on this would be appreciated. Thanks, Slimnslender
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Repairing water leak with Pex (or Flex)?? tubing