Grrrrrrrrrrrrrr!! I spent over half an hour composing a post for you about water supply for the canal, and doing some sums to work out how many/ few extra boat passages could be permitted in a given area if we had an inch of rain. Very interesting it was, then I pressed some unknown button and lost the lot. Blogger seems to have no undo button.
I will do it for you again but I'm just off out of the door for a few days taking Grace on her first ever camping holiday, (wish us luck) and we're already late, so it'll have to wait until we get back.
Now where did I put the buckets and spades.