Our dalek compost bin is almost completely full, at the bottom is some very brown material some of which looks like grass still but rotted (OH keeps dumping loads of grass clippings in it when I'm not looking). I wouldn't want to use it for potting on anything but wonder if I could use it to dig into my soil, I have clay soil and some areas really need some compost and sand dug in to break it up a bit or should I just err on the safe side and buy some big bags of compost and use that.