On Wed, Jul 23, 2008 at 6:30 PM, Peter Stockdale <[EMAIL PROTECTED]> wrote: > <[EMAIL PROTECTED]> wrote: >> >> At 3:30 we left Castlefield basin and headed up the Rochdale 9 â€" > or at >> least we tried to â€" it took all 5 crew plus an onlooker and > Jannock’s >> engine flat out to get the bottom gates open on the first lock. The >> cascade of water over the top of the top gates was more than the > lower >> gate paddles would let out and so we could not shift the gates. > >> > Sorry to hear that you had trouble with Lock 92. > Clearly some thing has gone wrong, as there is no way that any flow > over the top gates on this lock should be more than temporary. > No way should the volumes be such that you cannot swing the bottom > gates with ease. > I can only assume that the overflow weir has become clogged with > detritus that abounds in that particular area.
I don't think these locks have by-washes - well not originally, though I think some have been fitted since, and then only some only very recently? The best way to get through a lock like this is to run off some of the excess water through the lock, the water differential being higher means you get the water through much quicker than waiting for it to weir over the top gates. Mind you, much harder to do this when there is a boat in the lock (i.e. going down, when there is even more water in the pound since you just emptied a lock into it). Cheers. Mike -- Michael Askin http://shoestring_DOT_zapto_DOT_org/ ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/canals-list/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/canals-list/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
