wrote in message

No I meant sandblasting.

It would be helpful if you quoted who and what you are replying to!
Having messed about with the view, I see it was me. :-) Maybe it is more
obvious in googlegroups? Give me a clue, where on the page is it please?
There is a huuuuugee long list of threads. The ammonia thing was
interesting anyway, thanks:-)
Holly