This product works. It keeps the bromine level where it should be and PH and alkilinity in line too. If the bromine level gets low (oops! forgot to check it and add more tablets to the floater), just adjust the floater to add more bromine then readjust down when bromine level is OK again. If the bromine level is way down, I just throw one or two tablets straight into the spa as well. At one time used another product which didn't do anything to the bromine level, and the PH and alkilinity levels were way off too. Couldn't figure out what was going on. Went back to the HTH and everything's perfect. Also, these are not as expensive as some.
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