Radek,
Oh well, if you’ve only been doing this for three years that explains your inexperienced view on how to clean a carpet. I’ve been cleaning carpets for 40 years, so I’m a little bit more experienced than you are.
Here’s how it works. A professional carpet cleaner turns up to a job and in the back of his van he has the means to clean any carpet, regardless of age or condition.
What he doesn’t do is go in there with your blunderbuss approach. He assess how best to clean the carpet given its colour, fibre type and soil conditions etc and then decides how best to clean it, while causing minimal damage to the carpet in-so-doing. So if it was very dirty he might use one of an assortment of pre-sprays, which he would apply hot, as hot pre-sprays work far better. Then he could, if he thought it necessary, agitate that pre-spray with one of three methods, stiff pile brush, rotary pad, or mechanical brush, but he would only go for the latter as a last resort – why? Because mechanical agitation, CRB or rotary brush applies a high degree of friction that has the effect of untwisting pile yarns, which in turn can help flatten a carpet and is to be avoided wherever possible. Have you never wondered where all of those carpet fibres a crb machine deposits in clumps on the carpet come from, were they lose before or have they been ripped out of the carpet by you?
Guess what, I have all three methods of agitation available to me at all times, but because I know what I am doing, I know when and when not to use them and yet still produce stunning carpet cleaning results.
We are technicians, Radek, and just because we have a tool available to us does not mean we should use it every time we clean a carpet.
But you clearly have it in your head that every carpet must have a crb over it regardless, regardless that is of the secondary damage you have done to that carpet that need not have occurred had you not been so inexperienced.
Simon
