05-28-2006, 11:35 PM
I've used similar to THIS on driveways, and they work VERY well...but, beware, get some recommendations from the place you buy it from, as some only work well on 'smoth' concrete, and are no good on 'unfinished' concrete (actually, there is an acid based one that will clean any type of concrete...but it's damn dangerous, and not good for the environment...I think a lot of countries have now banned it). Best6 bet is to go to somewhere like home depot, or even a lanscaping store to see what they have, and ask LOTS of questions.
Scorp.
Scorp.