Zero residue carpet cleaning:

Step #1: Spray the entire carpet (not just traffic lanes!) with a (high heat) traffic lane degreaser to begin the emulsification of the dirt and oils in the carpet. at high heat (see my heat output under stone care!) using soft water to remove all chemicals from the carpet, leaving it hypo-allergenic and maximum cleaned.

Step #2: This step involves rinsing the carpet at high heat with soft water only.