I have been reading post for so long starting to get a little confused so can someone give me a list on how to start up from scratch with Chlorine this tub was used by a friend with bromine i never liked the smell of it when he had it and he was allways adjusting levels. Cheapest and easiest please and thanks in advance. And by the way it is a Viking 1/ 4 person round tub measures 6feet across and like 32 inches deep maybe a little deeper.