Thanks for the replies.

I will try some experiments at the weekend.

To answer your question D Kat, if you imagine a "normal" pond built with a
buytl line and then throw a lot of soil (earth) in afterwards so that all of
the edges have gentle slopes to the solid surround area, then you have my
pond. The water is being sucked up through this by capillary action and I
need to break that action somehow. I will experiment at the weekend and
report back later!

(I am losing an inch or two a day!)


"D Kat" wrote in message
...
Bentonite? I don't quite get how the banked soil works and how your pond
is
lined such that a berm (if I understand correctly what you are saying)
would
pull the water out of the pond. How much are you losing/day?
http://www.pondseal.com/
"redtag" wrote in message
news:1062577411.671448@sj-nntpcache-5...
I have installed a new wildlife pond, about 4m x 6m. I have banked soil
right the way into the pond as per most instructions for wildlife
friendly
ponds and it all looks good.

However the way is now draining out of the pond due to capillary action
(or
wicking, as it is sometimes called). Although I have a lovely area of
wet
soil all around my pond, I was hoping to keep some water inside the
pond!

Any idea on how to cut down this effect?

Can I do something different with the liner to help prevent this? At the
moment I have this:

*****************soil
water * * ------pond liner
***** /
pond liner------- earth

Any ideas?