In article , "sweetheart" says...

I have posted about my pond before - being overgrown, having lost all my
frogs ( except one I think and two or three newts).

I am beginning to wonder if my pond has a leak. Despite all my attempts and
no draught here and I have redirected the roof water into the pond ..... I
still seem to find my pond is not filling up. It just seems to be getting
less and less water. Its now down to the shallow ledge on the edge. Its
never as far as I can recall been that low before.

How can I find out if I have a leak?

Use a hosepipe and fill the pond to the brim. If the level drops
significantly within a few days, you've got a leak.

Janet