Network Rail – Mersey Loop Drainage Tunnel Scheme Wilo-Emu Pump Installation

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After all these years, we are still carrying out works on the abstraction boreholes on the Mersey Loop Drainage Tunnel, now under Network Rail.

2013 has seen ourselves have to become Link-Up Verified with the Achilles system to enable ourselves to continue to carry out works on the Network Rail system. The pass which was achieved earlier this year, was our first attempt at the Link Up, so not bad.

We have successfully installed five Wilo-Emu borehole pumps during the summer in five of the six abstraction boreholes on the scheme, constructed by ourselves in 1997. 

The boreholes were constructed using Rushton Bucyrus cable tool rigs on the pavements in the city centre of Liverpool, and as the city has developed over the years, we have had to re-invent ways to access the boreholes working around various new obstacles.

With traffic, people, 24 hour Mini Tesco store doorway and traffic wardens, we have had a lot to content with in installing the pumps, but everything has gone very well.

The final 6th pump will be installed later this year on Wellmaster 250 flexible rising main. 

The Wilo-Emu borehole pumps are manufactured in Germany, so we are expecting the pumps to be highly efficient, and precise.  The delivery of the five units was spot on, arriving on the day that was advised at time of order.

The pumps are all operating, and working to keep the rail tunnels of the Liverpool underground railway dry.