I like that by putting a load of Bromine tablets into this floating device I can keep my hot tub balanced and ready for use. So far it has been a month, and I haven't had to add any chemicals to the water. Prior to my getting this device I was putting chemicals in twice a week. Now all I need to do is check it once a week, and add new tablets every month or so.
Rating: [5 of 5 Stars!]