On 28/4/05 19:28, in article
, "nambucca"
wrote:

snip
Theres certainly no decaying wood under there to have triggered this so
nothing makes any sense other than i am helplessly watching my lawn being
ruined



Any other possibility? An old spring/wellhead which has been buried? Old
manhole cover buried by irresponsible builder? Old oil connection
thingy/sewage pipe ditto? Old farming practice of some sort? Etc. etc.
--

Sacha
(remove the weeds for email)