Drain Relining

The Process:-
The system is ideal for the repair of cracked and broken pipes and sewers.

  • Step 1

  • A pre survey is carried out by CCTV followed by pipe preparation by high pressure water jetting.

  • step 2

  • The liner which is a polyurethane coated felt tube, impregnated with resin and catalyst system is winched or pushed through the defective section of pipe.

  • Step 3

  • Water or air is then induced into the liner expanding it to the contours of the host pipe and then is held under pressure where curing takes place usually in 1 - 2 hours. The lining at this stage has formed a hard, tough, structural pipe inside the old defective pipe.

  • Step 4

  • Upon completion the lined pipe is re surveyed by CCTV to check the installation and the results are recorded onto DVD.

    Benefits of lining techniques over conventional excavation include:
    Cost effective against conventional repair Speed of installation Minimal disruption and inconvenience Improved through flow characteristics Good resistance to future root, chemical and abrasive damage