hi freshi, yer i used it for the first time on a pub/restaurant carpet, very greasey, i mixed up in a bucket first 425mlts of the foresaid product & then filled the machine up to 53ltrs, pre-spray i went 48mltrs to 3lts, to be honest i was a bit nervous about using a product i've never used before, but my concerns were gone very quickly, enzo-soil one cut straight through the grease & the landlord of the pub was could'nt believe how great the carpet came up. the carpet i think in conditions like these is best cleaned at 500psi. if any of you cfr users hav'nt tried this product, get some its fantastic! freshi