I have an account that is a resturant. They have a hallway that is full of dirt and grease. You can see right where every one has walked the traffic lane is easy to spot. I was wondering what is the best method for cleaning on a job like that. What can I ad to my traffic lane to give it an extra kick? Also would pre spraying then washing the pre spray out with extraction detergent and then rinsing every thing with rinse be the right thing to do? In other words I guess performing three steps Traffic lane, Detergent & Rinse. Thanks!