higher cost of bromine. chlorinated water more sanitary.
daily testing advised due to sanitizer breakdown at warm temp. see
rash:
http://www.cdc.gov/healthyswimming/derm.htm

wrote:
I'm cleaning and refilling my hot tub for the season and decided to
switch from chlorine to bromine for sanitizer. Anything in particular
I need to look out for? (Beyond the usual water testing, etc.)

Thanks in advance,
Jo Ann