How do you pretreat carpet before steam cleaning?
From http://carpetbuyershandbook.com/step_for… Prevacuum the area to be cleaned, taking care to remove as much dry particulate (insoluble soil) as possible. Water extraction is performed to remove water-soluble soil that cannot easily be removed with daily vacuuming. Detergents, used in the carpet cleaning process, attempt to emulsify these non-water soluble particulates, thus reducing carpet cleaning effectiveness. · Following thorough vacuuming, apply an alkaline prespray detergent directly to the face fiber. Prespray detergents typically require 8-10 minutes of dwell time to begin emulsifying and suspending soil. Extracting the solution before allowing adequate dwell time will reduce carpet cleaning effectiveness. · Agitate the area with a pile rake or mechanical agitation. NEVER USE A ROTARY BONNET for mechanical agitation. Agitation will assist the detergent solution in lifting soil from
