jc... The difference between you and people like me. You're a business man who removes some soil from a carpet and achieves satisfactory results for most of your customers. Good business practice as #1 (jc..) comes first. Absolutely nothing wrong with that as we do live in a real world.
People like me tend to be tradesmen first and businessmen second. We aim to remove the maximum amount of soil possible from a carpet and work to the highest standards we can. We would call ourselves passionate about our skills. Some may call us fanatical
But of one thing there is absolutely no doubt. If you follow Best Practice Procedures as taught by the likes of the NCCA, IICRC, Prochem, Woolsafe et al, the carpet will be cleaner, stay cleaner longer and have a greater serviceable life expectancy.
With your reference to the office carpet scenario to which I referred in my earlier post, because of the real world time and cost restraints imposed on office cleaning contractors, no matter how good the intent, no matter how good the typical tub type vacuum cleaner, the amount of dry particulate soil removed will never be of an acceptable level to an experienced quality seeking carpet cleaner. THE MOST EFFECTIVE TOOL FOR HIGH PERCENTAGE DRY SOIL REMOVAL ON TYPICAL OFFICE CARPET IS A TWIN MOTOR UPRIGHT VACUUM CLEANER. Tub types have no agitation, an essential element for dry particulate soil removal.
Being the passionate tradesman I am, I go out of my way to teach my residential customers how to vacuum their carpet properly. Why? Because they don't know how to do it. I have NEVER had a new customer who knew how to vac a carpet. When I do it, they are amazed at the difference, frequently thinking that that was all their carpet needed (sometimes they're right too
) So, I would never allow a customer to do the vaccing for me,'cos they're not good enough.
I respect the commercial decision that you have made re the way you clean some of your carpets. I don't agree with it, but I respect it. But of one thing I am certain. No matter who, no matter where. Miss out the pre vac and the results will always be wanting.
Safe and happy cleaning
Ken