Many thanks John. I will try them out, and see what they can offer. I don't know the name (brand) of anything?
Colind
June 2009
You'll probably have to live with this to some degree, but if you go to a builders merchants that do wood burning stoves, they'll sell you a caustic product that works quite well - for a while anyway. Curiously enough, its made by Stoves.....!
John
June 2009
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