HI all, I have secured my first clean this weekend, an office area, totally empty, trashed carpet tiles, customer knows that they wont come up as new but has a budget and is willing to spend it either way!!!

I only have a HWE machine, so was wondering which is the best course of action:
1: Pre-spray (Prochem Multi-Pro) then Extraction (With Prochem Fibre & Fabrice Rinse)
2: Extraction with Prochem Crystal Green
3: Any of your suggestions......

Obviously I want to make a good impression, so I'm looking for the best possible results (with the equipment I already have!) as it may lead onto bigger and better jobs...
Thanks
Phil