Tidal Mill
The Tide mill is situated in a river estuary and collects water from the incoming and outgoing tide which fills the storage ponds of the mill.
When the tide recedes the water is left trapped behind sluice gates & raised banks or dykes. As soon as the tide has receded far enough the miller can open the sluice gate and release a controlled amount of water to turn the undershot wheel. Depending on the storage capacity of the mill ponds the miller may have only a few hours in which to work before the water runs out.