Aquatic Control Engineering Ltd (ACE), having worked previously with JBA Consulting Doncaster Engineering Division, were contacted to assist, in what was initially thought, to be a simple replacement of four pumped and four gravity non return valves. It was during that time, that the price for scrap metal was still rising sharply, meaning any unattended piece of metal tended to grow legs and disappear! Unfortunately, the Selby Area Internal Drainage Board, who maintain the site on behalf of the coal authority did not escape such thefts, even after spending time and money on security fencing and barriers.

 
For this project an attempted mindless theft of the cast iron flap valves at the Kellingley Crook Pumping Station, left communities and acres of agricultural land, open from the threat of flooding. ACE, on behalf of JBA Consulting Doncaster Engineering Division, attended the site, to review the damage to the old cast iron Flapvalves, to see if they could help, using their product portfolio and 14 years knowledge to assist in the most affordable and practical way.
 

ACE redesigned the scheme to use one of their WaStop non return valves; one of the fantastic benefits of the WaStop product is that it fits neatly inside the pipeline, leaving nothing protruding from the head wall. This meant not only any potential thief would not ee anything worth taking; it also meant the pumped non return valve adjacent to this WaStop unit would freely operate. This entirely removed the problems, insuring he new system is improved and at a much lower risk from theft and vandalism.