Monday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: What is the best way to get a vacuum belt burn out of the carpet?
The black marks mostly contain burnt rubber and a solvent may dissolve them. If the surface fibers have melted, you many need to lightly trim or abrade the surface.
When using a chemical, you may need to repeat the process a couple of times, making sure the agitation level is fairly high and chemical application as light as possible (otherwise the solvent may dissolve the carpet adhesive and leave a bubble).
It most cases ... — Gary Clipperton, president of National Pro Clean Corporation.
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