The message
from "Brian Watson" contains these words:

The plot is absolutely flat with no slope at all.

Welcome to the fens.

:-/

Alternatively, take the advice to build up some parts and lower others and
then follow my previous advice re draining it from the lowest point.

Personally I am wary of this "you may have a case..." thing.

Litigation is a pain in the wallet and you can easily turn this situation to
your gardening advantage.

Ah, but guess what Nick does for a living.........

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/