A large distribution warehouse in Southampton was experiencing problems with a pump station taking the storm water runoff from the loading bays. The main problem was that the security tags used on the containers were finding their way into the pump station causing blockages and subsequent failures. We recommended the installation of Mengin cutter pumps which could be adapted to fit onto the existing discharge stools. These units are capable of cutting the majority of foreign bodies into smaller manageable pieces which can then be pumped away. Following the installation the client reported a 75% drop in maintenance costs for this station. These Mengin units have been used at other sites were the ingress of foreign bodies, such as prisons, is a common and costly problem.