Sewer connections into existing manholes can sometimes prove challenging due to the concrete used around the chamber when initially constructed. However, with the correct tools, equipment, and, most importantly, experience, it’s possible to break into the manhole to complete the necessary sewer connection.
In this particular instance, once the concrete had been carefully removed, all clay channels and fittings were installed by hand and re-benched to complete the connection. Once the connection process was completed, pipe was laid to the correct falls on a stone bed and surround.
For this job, two-way traffic lights enabled us to carry out the connection without closing the road, by using one lane for our works at any time. Our traffic management solutions always include communication boards for the general public, so that they might contact us if any problems were to occur during our time on site.
It goes without saying that the correct compaction and materials must be used within any highway. In this instance we utilised MOT Type 1 crush compacted in layers, using the correct number of passes with a petrol trench rammer, before all cut edges were cleaned ready to receive bitumen edge sealer and the specified tarmac was used. Once this stage was completed, thermoplastic overbanding tape was used to prevent water ingress. At Premier Drainage Solutions we believe that a temporary reinstate is not good enough, and that a permanent solution is the only way of completing the work – nobody wants to have to return to site and cause further interruption.