John and Ann wrote:
> A stop lock usually marked the boundary between two different canal
> companies and was there to ensure that one company didn't risk losing water
> to another (usually the later one). If there was a difference in level it
> would always be in favour of the earlier company. John
Not always - Hall Green stop lock between the T&M and the Macclesfield
Canal used to have two sets of gates, facing in opposite directions, so
it could be used no matter which side had the higher water level.
Andrew
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