Using a windmill to top up water in a dock

Canada Water, a fresh water dock was leaking following damage to the integrity of its lining. Neither London Transport who had flooding tunnels nearby, nor Thames Water were able to supply the necessary quantities of water to preserve this unique habitat, which was thus under threat. At the suggestion of a local resident, I conducted some historical research revealed that in the Nineteenth century substantial amounts of water had been extracted using windmills. Geological research indicated that this water was still available, and various windmill ideas were considered until the turbine engine was installed. This operates constantly, and delivers large amounts of water of potable quality from eighty metres under the dock to four granite gargoyles located along one side of the dock. These deliver water to the dock at a constant flow, feeding marginal aquatic habitats below with a constant supply of water