Hey, if I was u id buy Axiom by prochem. Works better as a rinse. Sf is not friendly to ur rig fromn what Ive heard. Tried Dfc by chspec inferior to axiom in every way imo. Keep some strait sodium percarbonate on hand to boost your precond. I also keep a rinse on board thats a 2 just in case the cust. likes to clean their own carpet. A good green pre with sod perc. is all you need. stay away from ultra pac ect.. You body will thank you later.
I've used a very similar product in Oxygen Release from Pro's choice... I've found a killer combo in using Jon Don's version of ultra pac (grandslam) boosted with a bit of citrus. using the oxygen release to rinse. I'll let you know what I find with the soap free as I just got my sample of that.