The unit looked like it had never been vacuumed. To say the carpet was full of dust bunnies would be the understatement of the year. We always pre-vaccumm the carpet to ensure that out pre-spray binds to the dirt that lays below the surface rather than the dirt on the surface which is easily removed with a decent vacuum.
Once we had vacuumed the carpet we applied a high ph cleaning solution to all of the carpet area. We let the solution dwell for 20 minutes. We cranked up the psi on our truck mount carpet cleaning unit and began extracting and rinsing with a low ph cleaning solution. A low ph cleaning solution reduces surface tension and ensures that no residue will be left behind. No residue prevents rapid resoling.
The carpet cleaning was successful and all of the stains and traffic lane patters were removed.