all thick pavrs are installed with sand and nothing more, except around the edges where is there is a mortared edge to keep them in. You can clean them with a surface cleaner and rarely will they be damaged even with a turbo nozzle! They are verry tough. The sand that you knock out wont be deep unless your trying to. Home depot has paver sand to replace it. You can also apply a strong roof mix and rinse with hose if don't want to pw it.
Yes it is, no reclaim requiredJon - Is it possible to get the old stuff up without re claim equipment?