sorry if this thread is driving anyone to despair now
Regarding Mistrals mixed carpet powder mentioned on the last page .
Barry kelly of Mistral was replying to my querys at 11 last night , he says is a mix of phosphate , sodium carbonate , sodium metasilate , and a powder surfactant blend they buy in ( which is typically alcohol excolated and a few others , which are processed into the powder ) and some fragrance . he said there is sodium sulphate but at about only 5% .
He explained that the main function of the sulphate bulking is give a free flowing uniform powder , so if the powder mix is the very fine soda ash and phosphate it would be very dence and flow poorly , the sulphate decreases the density . It more about appearance , density , flow etc .
however it is still dilution if its use in large % , its serves no cleaning function .
So Mistrals powder looks like very good value coming at about 2.20 per kilo incl vat/post .
It would be at least twice that and more from a carpet supplier so you are effectively cutting out one of the middle men ( sorry middle men ) . I think i will give it a go at some stage .