http://uk.pg.photos.yahoo.com/ph/bar...1947/my_photos

The turf was top spec from Rolawn and laid by a professional firm who had
done the landscaping. It was SO healthy a matter of two months ago.

we have a dog, but this is not dog damage, anyway he pees on the slate
lump!!

1 What have you growing near it that may change the soil acid/alkali
levels?
2 Is there a clay subsoil much lower down?
3 If you remove the top 2" what does it smell like?
4 In the "Circle" is there any drainage away under the rim?