https://www.vetnurse.co.uk/f/nonclinical-discussions/5998/cleaning-a-stone-fireplace looking for tips on how to clean sandstone fireplace which has soot marks on it. looking for tried and tested methods and if possible no chemicals (tried phosphoric acid this morning which somebody recommended and the fumes nearly killed me!) have alsoen-USTelligent Community 10https://www.vetnurse.co.uk/thread/58387?ContentTypeID=1Fri, 04 Dec 2009 17:27:02 GMT1a0763ec-3885-442c-853e-6cef656dfec5:6177b792-de96-4c00-b87b-510fa23efd67Caro Laithwaite VN<p>wipe valarian all over it. By the time the boys finish scratching you will have the top layer of grime off. </p><div style="clear:both;"></div>https://www.vetnurse.co.uk/thread/58385?ContentTypeID=1Fri, 04 Dec 2009 17:22:33 GMT1a0763ec-3885-442c-853e-6cef656dfec5:d7aa9ed7-93e0-4522-8c43-9aa792782809Caro Laithwaite VN<p>shot blasting (and l don&#39;t mean with a shotgun) it is how they clean stone buildings.</p><div style="clear:both;"></div>