Daryl
Some 17 years ago or so, when I started cc as a subsidery to general cleaning I had a Numatic and to get good results I had to work very hard. Didnt know anything about the cleaning pie chart - just knew I had to work - and of course then it was detergents all the way.
When the Scorpion was my main machine a lot of the time I used the customers hot water which gradually gets colder. I do have a efficient inline heater which I do use - like this Monday when a pipe had burst on the TM so was out of action for the day.
However, as you know TM generate high heat - mine up to about 190degree (I think is correct).
This adds to the efficiency of the job in hand.
So comparing today with 17 years ago, I get a better job with less effort from me. And that is the same when comparing with the Scorpion - I can get a very good result with the Scorpion but with the TM it is easier.
As for cleaning fluids - I use the same. But I do think cleaning fluids have made big improvements generally in the last few years and no doubt will continue to do so - all for the ultimate benefit to the customer who pays the wage, and to us with easier task.