Maybe if the industry concentrated on Breaking down, Releasing, Encapsulating the soil in carpets and fabrics, there would be less need for the current obsession with doubling, or trebling the pressure and vacuum power in machines.
How much does it take to clean to an acceptable standard, and please don't come out with the " cleaning all the way to the base of the pile needs high pressure " when surface tension is released and soiling is broken down and encapsulated, all that's needed is rinsing.
The marketing and personal hype put out and maybe believed, by advocates of the " bigger is better " brigade is aimed at impressing potential buyers of products and end users, but what is the reality, on a day to day basis, for 99% of the work being done.
rob