leaking pipe under concrete floor!

Discussion in 'Plumbers' Talk' started by Redhotferrari, Feb 7, 2010.

  1. Redhotferrari

    Redhotferrari New Member

    Hi Guys,

    Need to access and repair a leaking heating pipe which is buried in concrete, had a guy with thermal image camera find the leak, so no problems there.

    Just wondered what the best way is to dig the floor up?

    How for down are the pipes likely to be? Assume an inch or so?

    I have sds chisels and drills, is that the best way, or back to a good old lump hammer and chisel?

    Many thanks
  2. Tony Soprano

    Tony Soprano New Member

    HI ferrari long time no see

    Cut a channel where the pipe is with a grinder,then get an SDS breaker and take out all the screed,if its buried in concrete then highly unlikely you will be able to get to it

    If it is old and copper then just put a new pipe in complete length with no joins under the ground,perhaps in channel under the floor or inside a duct

    The chances are unless a joint is leaking then the copper may have been damaged and other leaks from pin holeing may occur. One local repair repair may just be temporary fix and it could occur again
  3. Redhotferrari

    Redhotferrari New Member

    Thanks for the info.

    I can only assume that the copper has been damaged by concrete over time, and have warned of the danger regarding repair and that additional leaks will happen at some time, even suggested repiping system with drops, did not go down to well though!

    My concern is where the pipes run, as not sure of the location, dont think I will be able to put in a complete pipe without joints, the leak is in the middle of a big room, near to the skirting boards.

    Me thinks this is not going to be fun!
  4. Copper Dragon

    Copper Dragon New Member


    If it was like this job it was a nightmare hubby had decided to do some diy this picture shows a cold mains to the cloakroom. There where flexis everywhere on hot and cold supplies to rads I wish I hadnt taken the job on! Hammer and chisel sore knucles.
  5. joinerjohn

    joinerjohn New Member

    It's a very bad idea to bury copper pipes in concrete anyway. Unless they are protected from contact with the comcrete, they will perish fairly quickly. A mate of mine had this problem and had to dig out and replace the pipes, re burying them in some plastic conduit.
  6. Dick Puller

    Dick Puller New Member

    Hi Redhotlada, it's been a while. If it was me I'd replace all the pipes buried in a concrete floor. I'd use plastic pipe-n-pipe.
  7. Crowsfoot

    Crowsfoot Well-Known Member

    even suggested repiping system

    Probably the only way to fix it - chopping up a concrete floor to find a leak on ch is rarely a success.
  8. Redhotferrari

    Redhotferrari New Member

    Redhotlada, very funny, lol!!!

    I can feel a very big job coming on with this, bloody nightmare!

    How can i link an image to this topic? I have done a room layout to show why I think its not going to be possible to surface mount pipework. doors and windows in way all over the place.

    Just after some clarification, if this was your job, would you suggest repipe with drops over the whole house due to the possibility of future problems, or make current pipework redundant and run new pipework in new channels throughout the room?
  9. ginger tuffs

    ginger tuffs Member

    could you push plastic pipe through the pipe under concrete using old pipe as a sleeve
  10. spongeblob

    spongeblob New Member

    concrete using old pipe as a sleeve

    ***, stick some sealer in the system for the meantime,then tell to save up for a repipe, you might be the other side of the lawn when they decide to do it. :^O :^O
  11. Crowsfoot

    Crowsfoot Well-Known Member

    house due to the possibility of future problems,

    Definitely, otherwise you will be going back to it forever more.
  12. imran_

    imran_ New Member

    Why not trace the pipe and then replace or re-route. Can't be that difficult. Time-consuming and boring, yes. But not difficult.

    Personally, unless they were existing customers, I'd give them my recommendation and they either accept it or I'd walk.
  13. graceland

    graceland New Member

  14. Captain Leaky

    Captain Leaky New Member

    You don't want to be using a grinder inside! Just sds drill and chisel.

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