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Thursday's Ask the Experts: Cleaning wool carpet

April 15, 2010
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Thursday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: Do you have any suggestions for the best type of equipment for cleaning wool carpet in aircraft? We have a portable carpet extractor, but we use low water and low heat because of the natural characteristics of wool fibers. This makes the extractor not as effective as we would like.
The answer:
I assume you are using a box and wand-style portable extractor. You should have no problem using normal hot water — up to 140 degrees Fahrenheit in the tank.
The temperature at the carpet will be less than 110 degrees Fahrenheit; that''s quite safe for wool. I would increase the flow rate to at least 1 gallon per minute (GPM) ... 1.5 to 2 GPM would be even better.
Do this by having larger jets installed. Keep your pressure at or below 100 pounds of pressure per square inch (PSI) and make several drying passes.
Make sure you pre-spray using ... — John Downey, founder of Cleanfax magazine and president of Downey''s Carpet Care of Granville
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