Drain Contract – Collapsed Plastic Pipe Liner Removed From Domestic Sewer Pipe

Traffic problems avoided thanks to fast removal of pipe liner

As specialist partner to Dyno Rod, the UK’s leading drain contractor, Tube Tech was the ideal choice when a plastic pipe liner collapsed inside a clay domestic sewer pipe. The liner was blocking a domestic sewer outside a house on a main road and needed immediate removal in order to avoid road works.

  • The clay and cast iron sewage pipe was lined with a plastic pipe liner which had collapsed close to homes on a busy main road in an Essex town.
  • Dyno Rod knew immediately that the task was beyond their traditional capabilities.
  • Access to the liner was restricted as the liner was 1.2 metres below ground via a 450 x 450 manhole and an old lead main water pipe ran across the hole which narrowed at the bottom of the pipe face.
  • Without the specialist skills of Tube Tech over 7m of sewer pipe would have been dug up.
  • This would have meant re-housing at least one family and causing severe inconvenience to other residents.
  • The sewage pipe located under a concrete drive was built over the edge of the River Crouch.
  • If the pipe had needed removal then the Environmental Agency and the County Council would have become involved due to the risk of raw sewage going into the river.
  • In addition major disruption would have been cause by working on the main road.
  • The drain was cleared first in order to inspect the liner as the entrance to the pipe had collapsed.
  • Tube Tech was soon able to video the pipe condition to ascertain the location of the liner.
  • Using a variable flow / pressure pump that used food grade media in the water flow Tube Tech were able to break up the plastic pipe liner and clear the sewage line in less than a day without remedial damage.
  • Only a domestic water supply was available but Tube Tech were still able to complete their contract quickly and effectively.

Scott Donson, Technical Sales Manager: “Once again our investment in R&D has helped our clients. Our safe approach using a food grade blast media has been used in many unusual and delicate circumstances and is ideally suited to the removal of plastic pipe liners.”

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