Thursday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: How can I remove yellow chalk dust from the carpet below the chalk board? This build up is over quite a few years and does not come out with regular cleaning.
Colored chalk is challenging but cleanable. However, merely adding a weak solution to the extractor and immediately making repeated passes is ineffective. Always begin with intensive and repeated vacuum passes with a beater bar unit. Next, mix your extraction cleaner at a strong concentration in a pump-up sprayer and apply it liberally to the soiled area. After 5-10 minutes of contact time ... — Gary Clipperton, president of National Pro Clean Corp.
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