You did a video cleaning an office carpet the other week using hydrox mixed at 1.1 then sprayed over with DS2 was the carpet polypropylene ?
The reason I ask is because I've been experimenting with four off cut pieces of carpet which I purposely stained a few weeks ago with tea/ coffee/ red wine / and blood, I tested the stains with hydrox mixed at 3.1 as the instructions say on the bottle and again with 1.1 as you did
the stains I attempted to remove at 3.1 mix had all gone exept for the blood a second attempt completely removed it, I then tried the same test at 1.1 and the stains came out in seconds but so did the colour !! I had samples of acrylic , polyester and 80/20 and the wool off cut being the most affected as you would expect ! I cleaned a college in durhan last week using a variety of encaps including Hydrox but I was cleaning polypropylene low profile tiles and was spotting at just 3.1
I wonder what is in Hydrox to give such a bleeching effect ?
Stuart