I dont have concreate under my dogs, so I just keep about an inch of Cedar shavin's in the kennels and it seems to keep the smell away and blood suckin critters, but I would think the bleach would work the best with concreate, But I'm gonna go to Sam's and look for the other stuff to. My males are the worst, there house's get the most of it, and I have to presure wash'em 1-2 times a year.
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