I was thinking of cleaning & sealing driveway or cement basements.Can I use a Good tile & Grout cleaner? will the brush attachment hold up and do a good job of cleaning cement driveways? should I also have a High pressure sprayer?I Know after cleaning i will have to fill the cracks before sealing,but I just want to Know If The challanger with a good cleaner do a good job cleaning driveways well.

I think you would do OK on concrete basement floors, but I think drivemays might be pushing it a bit. As I reported in an earlier post, I've started to strip some outdoor wood decks with the Challenger and T&G brush, and it's been going pretty well.