We were asked by Bowmer & Kirkland to provide a solution for reducing the height of a wet well and valve chamber for a large surface water pump station. A new access road was to be built over the top of an existing pump station which had to be lowered by 1200mm, this meant that the current 250mm valve chamber had to be redesigned. 

The consulting engineers plan was to construct a new valve chamber 20m away and pipe to it, but because of the services that ran through the proposed excavation it prevented this from being a viable plan. We suggested to the client that we redesign the existing valve chamber using compact 250mm non-return valves to then be discharged into a newly formed discharge manhole at the far end of the old valve chamber, this saving them time and money.