Geoff
Never mind ! Darren, taking a large machine into someones home and creating a hurricane, is NOT going to give a pricing " edge "it may appeal to some, if you convince them it's necessary.
How you present yourself, how knowledgable and caring you appear, how confident you come across in your ability to clean to a high standard and how you deal with, drying issues ( which in reality exist more in your mind than the clients ) will give you an edge.
If a drier is NECESSARY I would use one, but for 99% of the jobs, it's just not necessary.
Nobody expects carpets or suites to be totally dry, following a wet clean, in fact most clients, when new to us are surprised when we tell them, their carpets and suites will be touch dry in one to two hours and totally dry in four to six hours, occasionally longer.
This is BETTER than their previous experiences and has never been a problem in over twenty years.
So...........for people new to the business, I suggest you learn to get the best out of your tools, learn about prespraying and aggitating, find out which chemicals work best for you. I'm afraid you'll have to experiment because we all have our favourites.
Once you've mastered the tools and learned to get the best from your machines, you will find whether or not you need to add driers to your set up.
What I'd suggest, is, you want the minimum amount of traffic / disruption around your clients property taking into the house only what's absolutely essential. By doing so, are are reducing the risk of damage to any of their valuables.
rob