My buddy has a cobblestone driveway that usually get filled with weeds and grass and stuff...well a month or so he converted his pool to a salt water system and had to go to Home Depot for big bags of Morton's salt....he had one bag bust on him in the driveway by the garage...he sprayed it down with water and till now not one weed, not one spec of grass...nothing.....ground zero on his driveway and the edging of his lawn...

Don't know if it will stay that way but it looks like Hiroshima on that driveway right now....he has decided to not let his dog out on the driveway for the moment so we do not know if it will have a long term affect on anything

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Showing up every day isn't enough. There are a lot of guys who show up every day who shouldn't have showed up at all. - James Caan