"colin s" wrote in message
news
I have a 1700g pond which seems to have sprung a leak for no obvious reason
.It is a liner with underlay which has been ok for a year now there is a
waterfall running which have checked for leakage.I don't want to let the
pond go too low as I have nowhere to put the fish, is there any way of
locating the leak without draining the pond?
Thanks for your help.

There have been several discussions of this.
You can use milk to find the leak. I would
go to groups.google.com and do an
advanced search on this group, using "leak
or evaporation" as the key words. Set
date to start around 1 Jan 2000 else you'll
have a lot more messages to wade through.

Gail