Is Bromine or chlorine better for hot tubs?
For water pool treatment Trichlor tablets work great. Because of the high acidic nature, this particular type of chlorine is not recommended in spas. It also dissolves too slow to be effective. If the spa shell is exposed to Trichlor for a prolonged period of time, bleaching of the spa shell can occur and can often cause a permanent ring at the water line of the spa shell.