By utilising HydroV®, its patented modular valve release technology which ascertains the “free movement” of the mechanical components, Hydrosave’s valve team managed to successfully release and make operable each wash out flat valve by attaching to the external hand wheel and to the inlet valve tapered extension drive respectively. All valves were proven to work thus enabling the client to carry out their maintenance programme when required, saving them much inconvenience and cost by adopting alternative methods.