--- In [email protected], Brian Dominic <[EMAIL PROTECTED]> wrote: > > > I'm fairly certain the locks on the Cromford didn't have bywashes and > it would be our intention not to install them when we restore - we'd > use the method used on the Erewash, where the bottom gates are > slightly shorter than the top ones, so water can flow through the lock > when the level in the upper pound is high. > > Brian L Dominic > > Web Sites: > > Canals: http://www.brianscanalpages.co.uk > > Friends of the Cromford Canal: http://www.cromfordcanal.org.uk > > (Waterways World Site of the Month, November 2005)
If you have plenty of water to spare (waste) - then this system will work. However a boat going up will be relying on the level in the upper pound to drop sufficiently to enable the top gate(s) to be opened. I doubt that the majority of locks have bywashes for no good and over- riding reasons. Pete
