Cheer Roger, as always very much appreciate your input.
Aqua, no I wet the area first, then hypo then clean, thus far I've not done huge areas a And tend to only use it on concrete based areas. Other than OT8 for oil everything has come up superbly well using the above or straightforward water only
But remember I'm a noob at this, and have lots to learn, what I see Roger and the others clean, how they know what stone is what type, what chemical to apply amazes me, I just hope that I can take it all in and become as good as the big 4 who post great stuff on here
Darran
