On 05/08/2019 21:29, Vir Campestris wrote:
On 05/08/2019 12:53, charles wrote:
How do you remove surplus water from the canal without opening the
locks -
which are specifically designed to stop that happening. The relevant
canal
appears to run through Whalley Bridge and is presumably fed by a pipe
under
gravity.

You open the sluice gates top and bottom of each lock. The ones that let
you fill and empty the locks with the gates shut.

Paddles not sluice gates (remembering back to a canal holiday almost 40
years ago!)

SteveW