How to Restore Soot-Embedded Limestone
- 1). Cover the flooring surrounding the soot-stained limestone with drop cloths. Put on rubber gloves before proceeding with a heavy-duty cleaner.
- 2). Pour 1 gallon of warm water into a clean 2-gallon bucket. Mix 1/4 cup of trisodium phosphate cleaner — powdered granules — into the water.
- 3). Add 1 gallon of warm water to another clean 2-gallon bucket. Use this water for rinsing.
- 4). Dip a scrub brush in the heavy-duty cleaning solution. Scrub the limestone with the solution to remove embedded soot. Frequently agitate the brush in the water to rinse soot out of the bristles.
- 5). Refill the rinse bucket with clean, warm water. Moisten an absorbent sponge in the water, and then wipe the trisodium phosphate off the limestone. Thoroughly rinse the limestone surface.
- 6). Wipe the rinse water off the limestone, using a thick towel.