The flap valve solution on the Narrow Street Victorian sewer outfall onto Ratcliff beach in Limehouse, London was in need of a replacement. MeasurIT were able to show that a GuvNu valve array would provide the required longterm function as well as being aesthetically pleasing and the valve array was installed in September 2018.
Flap valves on the stormwater discharges to the tidal section of the Parrett River at Bridgwater were constantly blocked due to mud & silt. In 2013 Wessex Water decided that Tideflex duckbill valves would provide the solution, with their proven track record in being free draining and self-clearing. We have no doubt they will be happy with their choice for decades to come.
The coal harbour at Dun Laoghaire dates from the 18th Century and the outfall of the culverted watercourse seemed a simple solution. However, the outfall was constantly experiencing blockages due to sand and rocks being swept into the outfall chamber. A Tideflex duckbill valve was proposed by MeasurIT as the most practical solution and this has been working without incident since 2006.
This site in Douglas, Isle of Man required a robust solution to the problems of a large culvert exiting into a chamber in the sea wall which is exposed to high seas. We proposed and provided an array of 5 Tideflex check valves, which is still showing no signs of fatigue since installation in 2000.