17-06-14, 11:06 PM
(17-06-14, 10:34 PM)BBROWN1664 link Wrote: I thought the idea of leaving the lower gate open was to ensure any seepage from the top gate stopped the lock filling up and potentially overflowing.
I initially thought that, but if the upper lock fills up and the cut before is high then the water will just flow over the top of the lower gate (which is lower than ground level) so 'overflow' isn't an issue.
It would appear from my experience today it's to stop shorter cuts from losing too much water from the next lock
Some say...