You are providing a cleaning service, no matter what type of cleaning process you are using.
but no matter what you use, the carpet/suite will not be the same cleanliness as it was when it was new.
We get their carpet/suite cleaner - and very acceptably clean.
Rotaries and pads have the reputation of transferring dirt to the pad, but spreading other dirt more evenly about.
and rotaries are used a lot in commercial as you know.
I have used my Envirodri as the manufacturer intended - with their granules. And it works.
Used it twice in the last 3 months due to circumstances., and achieved a good result in mine and the clients eyes.
It is more expensive then HWE, due to cost of granules. It may take a bit longer as well.
But some customers ask for it to be done, and therefore they have to pay for it to be done.
Obviously pre-vacuuming to a high degree is imperative, the less loose dirt left in the carpet means the granules can work more on the sticky dirt. So you have to adjust the work method perhaps to suit this type of cleaning.
Dwell time is important too, so the granules can do their job, and then dry so they can be vacuumed up.
Need to explain to client that they may see granules appearing but they get vacd up easily as a matter of their routine cleaning.
Prefer HWE, but I have another string to my bow so to speak in the "dry" system.