Monday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: [I] have commercial glued-down olefin carpet that has been presprayed, rinse extracted and plain water extracted several times but with dark traffic lanes reappearing within a week. This happens even with the heating, ventilation and air condition (HVAC) system on and floor fans in area cleaned. Any suggestions for reversing this chronic condition?
Olefin wicking is common and correctable. If the carpet manufacturer allows bonnet cleaning, go back and spray on an encapsulation cleaner.
I prefer also to add 1 cup of rinse agent to the sprayer. Then, bonnet with a slightly damp bonnet. The key is ...
— Gary Clipperton, National Pro Clean Corporation