A visual check of the bottom cill of the cladding shows no visible water runs or staining.
Window openings had not been completed, and all were lacking a suitable cill to throw water away from the walls.
The second amendment would replace the lock gates with a half cill.
For instance, the level of cill is to a large extent the best technical guess that can be made.
The levels in the two reservoirs were six inches and four inches, respectively, below the overflow cills.
The edge of the cill is usually curved, protruding less in the centre than at the edges.
In some locks, there is a piece of oak about 9in cm thick which protects the solid part of the lock cill.
It would be 105 ft long, and the cill would be 22.5 ft below the highest tide level.
