So Mardie, have I got this correct ??
You went from a Von Schrader up to an OP, which is the same as or similar to what Chem Who use ??
Except for the "carbonated water".
Oh yeah, are not VS & Chem Who the same company ??
Or are they just in bed with each other as they are both located in the same building on a corner.
VS has their address in one street, whilst Chem Who is in the other street.
Mate, do yerself a favour and try some decent, PROPER, extraction cleaners.
Spinning a pad WILL NOT remove the deep down contaminants, nor the urine soaked carpet & pad, nor sub floor.
If you believe different, well it's only your business and reputation that will suffer.
Humble pie doesn't taste too bad when you learn how to use the cleaning pie properly.
Don't get me wrong, most of my work is done with either a Cimex or Sprayborg, but mostly on commercial.
I still have three porties, plus my t/m for when those carpets really need flushing.
Constructive criticism is what I am trying to show you without bagging any method, they all have their place in the industry.