Hi Lee
I think your apology will be accepted by all concerened.
Please.. I can only feel that you posted possibly out of frustration... I would be only too happy to explain my reasoning privately at any time
General comment... regarding residues..
I would like to share a true story with you which happened a year or so ago.
I was, at the time, carrying out a series of specialised training courses at a venue which had an adjoining labratory. During the time I carried out this work I got to know the laboratory staff very well
One morning I was talking to one of the laboratory techinians in the lab and she was checking some of the results of experiments which had been carried out the previous day. Putting her fingers (no gloves) into a powder on on a carpet sample she noticed that her fingers had been bleached.
"That shouldn't have happened", she said... a supposedly inactive residue was in fact active much to her obvious surprise.
It is this instance and several others that I have come across over the years that makes me extremely wary about residues.
Another instance was at a manufacturing plant I was being shown around where five well known carpet cleaning/stain removal products were being made.
The plant manager, who was resposible for the blending, told me that two of the products contained oxidising agents.
The chemists, on the other hand, assured me that NO oxidising agents were present in any of their products.
I have seen many times, as some of you will have, (I said that they were well known) that their particular products do have a bleaching effect on certain substrates.
I hope that this explains just where I am coming from and why I am sceptical at times.
Kind regards
Derek