On Fri, 28 Mar 2008 18:57:02 EDT, AlecTPR
wrote:


Again, the weather is not being kind to the north west English pond
users....

Yes, there is ivy starting to covering all the back wall, but it's only
just touching the waterfall now so I can't see this being the major
issue.

What you see touching, could just be the beginning. It can be amazing what
will grow into and under the water stream (especially ivy) and it doesn't
take much to wick water out, not just drink it. Water tends to follow the
stem(s) back to the ground source of the plant and the ground sucks it up.

You'll have to let us know what the problem was once you get a chance to
investigate. Good luck with it. ~ jan
------------
Zone 7a, SE Washington State
Ponds: www.jjspond.us