if the customer is health and saftey conscious then they wont want that AS10 going down the drain. its nasty poop and the cossh says it cant go into waterways. get a floor scrubbing machine, and a stiff brush plate for it and do it the same way as the test. put the stripper down and scrub it off with the rotary brush and vac up. if you use a fsc itll clog, and if you just use a lance, the AS10 will splash up onto the walls and everywhere else.