How the Mill Works Operation of a Historic Grist Mill ...
Traditionally, the millstone rotates by waterpower. At Gray''s Mill, a Sluice Gate was used to start and stop the flow of water from the mill pond across the road. The Sluice Gate was opened by a turning Sluice Wheel, which starts the flow of water, causing the water wheel to turn, thus providing power to grind the grain.
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