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Cable stuck - Chico

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    Cable stuck - Chico

    Have a seal off at a waste water lift station, for a submersible level transmitter. At the seal off Contractor used Chico but no cotton. Dug the Chico out of the sealoff, Chico ran down the conduit and now the cable is stuck....not possible to access the conduit elsewhere.
    Suggestions? Long drill bit, solvent, mice?
    Moderator-Washington State
    Ancora Imparo

    #2
    You could try pouring "Coca Cola" down the conduit and let it sit awhile.
    Or "Polywater" I've heard will sometimes work.
    [COLOR=navy]If you aim at nothing, you will hit it every time![/COLOR]

    Comment


      #3
      Originally posted by tom baker View Post
      Have a seal off at a waste water lift station, for a submersible level transmitter. At the seal off Contractor used Chico but no cotton. Dug the Chico out of the sealoff, Chico ran down the conduit and now the cable is stuck....not possible to access the conduit elsewhere.
      Suggestions? Long drill bit, solvent, mice?
      polywater makes a stuck wire lube that might get it.
      not regular pulling lube, for unsticking glued in conductors
      pulled with yellow 77, 88 years ago.

      a lot depends on if he filled up the 90 at the bottom.
      i've unblocked pipes filled with slurry with muriatic acid,
      a piece of fish tape chucked in a drill, and rubber gloves.
      it is not much fun.

      how big a pipe, and what size wire?
      ~New signature under construction.~
      ~~~~Please excuse the mess.~~~~

      Comment


        #4
        Mayhaps you can blow compressed air into the other end and manipulate the wires at the problem end.
        Master Electrician
        Electrical Contractor
        Richmond, VA

        Comment


          #5
          Originally posted by LarryFine View Post
          Mayhaps you can blow compressed air into the other end and manipulate the wires at the problem end.
          Pipe full of muriatic acid, compressed air...does anyone else see a potential problem here?

          Comment


            #6
            I’ve only witnessed, but muriatic acid has worked in my experience - it does take a while and patience, but that’s the name of the game no matter what technique you use.
            "Bob"
            Robert B. Alexander, P.E.
            Answers based on 2017 NEC unless otherwise noted.

            Comment


              #7
              just put a bag, full of holes of course, but filled with cotton balls, at the one end... air flows through, acid soaked by the balls... a few pieces of wire holding it in place or zip tie.. not as messy as it could be...
              Student of electrical codes. Please Take others advice first.

              Comment


                #8
                Originally posted by gadfly56 View Post
                Pipe full of muriatic acid, compressed air...does anyone else see a potential problem here?
                When was muriatic acid mentioned???
                Master Electrician
                Electrical Contractor
                Richmond, VA

                Comment


                  #9
                  Originally posted by LarryFine View Post
                  When was muriatic acid mentioned???
                  Post #3.

                  Sent from my XT1585 using Tapatalk

                  Comment


                    #10
                    Originally posted by GoldDigger View Post
                    Post #3.
                    Oh. That was suggested, not done.
                    Master Electrician
                    Electrical Contractor
                    Richmond, VA

                    Comment


                      #11
                      FWIW, the MSDS of Chico A sealing compound says it is:

                      Fused calcium aluminate 60% - 70%
                      Plaster of Paris 30% - 35%
                      Portland cement < 4%
                      Crystalline silica < 2%

                      I'm not sure how the fused calcium aluminate changes the chemistry, but there is some discussion on line about using a sodium bicarbonate solution to attack plaster of paris. If that works, it would be a lot less hazardous than muriatic acid.

                      Cheers, Wayne

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