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@withered_preacher hey, don’t really know to be honest. I’m not too fussed about the brick faces as I’ll seal them - so far they don’t seem damaged and I’ve been scrubbing endlessly.
Is there a bristle that you’d suggest better for the job? Cheers!
andos-
Not to dishearten you, but we have a 200 year old inglenook with soot stained bricks, we had a sand blasting company in, with the sand blaster mounted on the back of a lorry to give you an idea of the size, he blasted it for a decent amount of time, and the bricks are still pretty black in places...
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is the chimney still functional? can you burn off the soot with a clean flame like a butane torch? maybe a really really bad idea after you've been slathering it in chemicals for a few days...
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Have you tried this sort of thing?
https://www.toolstation.com/wire-cup-brush-with-arbor/p24723
Sam_w
hoefla
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What are the bristles on the brush made of? Could you get away with brass or even steel or would it damage the brick?