Andy Greener wrote: > Probably, but we can still have a bit of fun debating the thermal > transmission properties of a narrow lock (Wheaton Aston). Does more > warm water get through a lock with or without a boat in it, and what > about wide/broad locks? Does length matter? ;-)
Conversely, is it to do with chemical make-up of the "water" that comes from the sewage works? ;-) Steve NB Bream
