Hi Guys, i have a few quastion to you and hope someone will give me the right answer. Preparing to get my chemicals soon , as you know i am in europe and its not so easy takes a 3-4 weeks and any mistakes if i dont get the right one it cost me double. I want to buy prespray and carpet detergent from chemspec. for pre-spray they have : formula 321 traffic line cleaner with biosolv one clean traffic line cleaner detergent formula 90 liqud/powdered one clean -liqud/powdered formula 77 with biosolv please give me your advise witch one to choose as you keep in mind i clean mostly commercial dirty carpets i need to get the right one to give me best results waiting for your help
