Kevin,
Is there any type of 'sample' Aqua mix pack, or similar?
At the moment, hard floors are not something I really promote - so I don't keep much in the way of chemical stock or equipment. I've just done a carpet in a pub, and he also wants me to do the entrance area which is about 1.5m x 1.5m of Victorian tiles. I haven't tried any of the AM stuff previously, but I'm semi-tempted to start pushing this service more - but need to build up some confidence before going all out. I have done the tiles elsewhere previously, but I think (I know!) I made it much harder work than it should've been.