The Things You Find in a Sewer
Upon attendance to a major flooding incident in December 2020 Drainforce quickly realised they were up against a serious blockage.
A 700mm diameter trunk sewer was found to be discharging and causing serious flooding to a local business yard and premises.
We deployed our 32t Dirty Water Recycler to attempt the jetting and removal of any obstructions. The initial jetting began, and we came across an obstruction at approximately 45m. No matter what nozzle we used we were struggling to break through.
A visual inspection was needed to see what we were up against!
Due to the huge flows present within the sewer CCTV was not possible without over pumping. This was achieved with the use of two large diesel pumps and over 250m of delivery pipe.
What did We Find?
The first obstruction we found was a car wheel entangled in roots, rags and debris hence the reason we could not penetrate the blockage with jetting.
To remove the roots and the debris we utilised our robotic cutting rig to cut away the roots and debris thus allowing us to jet out the wheel and clear the blockage.
Job done! Or so we thought.
As there was over-pumping in place it made sense to continue the CCTV downstream to make sure there was no other obstructions present before returning the flows.
What did we Find?
Three more car wheels and a manhole cover were found and successfully removed from the sewer. The flows were returned, and problem solved.
All in all, a wheelie good job by Drainforce
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HEAD OFFICE BRIDGEND:
Drainforce Ltd,
Unit 2, Heol Ffaldau,
Brackla Industrial Estate,
Bridgend CF31 2AJ
Phone: 01656 651010
LONDON OFFICE:
Drainforce Ltd,
Unit 1 & Unit 6, Poyle Technology Centre,
Willow Road, Poyle,
London SL3 0DP
Phone:
0208 574 0350
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Drainforce Ltd,
Hazel Brook Garage,
Sageston, Tenby,
Pembrokeshire SA70 8SY
Phone: 01646 400570
Taunton Office:
Drainforce Ltd,
Courtlands Estate,
Taunton TA2 6NS