Hi Everyone, so I have sand stored from a previous set up that i had, the sand has been in a bin for a while (7yrs), I would like to rinse the sand and rocks but dont know if its safe to use the garden hose ( tap water ) or should I use RO? and then do I just use it after rinsing and cycle the tank or do I have to wait to the sand and rock dry to set it up and then cycle the tank?