Just went through this with my 75' long stream. The first thing to do is
isolate if it is in the stream, waterfall, or plumbing. Turn off the pump
and fill the stream to full. If the stream remains full, then it is in the
plumbing/waterfall. My first time it remained full. Turns out the liner
where the waterfall and stream met was not overlapped and it was running
back under the liner when the pump was one. This time my water level
continued to fall. I let it fall until it stopped, then followed the liner
edge around looking for holes. Turns out that the dirt had washed out and
the liner folded back on itself letting the water out. I also had a goodsize
leak on the install of my skimmer, so check there as well if you have one.

It can be quite frustrating to find it, but you just have to eliminate
things one at a time.

Good luck.

"Joan" wrote in message ...
Hi All;

Just discovered that we have a leak (must be pretty good size) in our 22
ft.
stream. Any ideas on how we might find it?

Thanks