On Sun, 24 Oct 2004 15:27:35 GMT, Nigel M wrote:

In uk.d-i-y, Pete C wrote:

If it's all clay and there is some drainage elsewhere, it may be
better to dig a sump instead and used a double ended siphon to move
the water elsewhere. I can post some ascii to illustrate that if need
be.

I'd like to see it anyway ;-)

LOL! Ok here goes:

___
_( )__
( )
~~~~~~~~
// // flow -
/ / ________________
// |.--------------.|
|| __________ ||
|| | | ||
|| | | ||
runoff - || | | || - to drain
-------------.~||~| |~||~.------
| || | | || |
| || | | || |
| || | | || |
|____| |____|


Basically the tube is primed, then any rise in level on one side will
cause flow round the loop to the other side until the levels balance
again.

This allows water from the area being drained to be emptied down a
drain some distance away despite the ground in between being higher.

cheers,
Pete.