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** note the government produces many damning "rules and regulations" and advice (columns) on pool chemicals. I know a life guard (used to). AS IT TURNS OUT IF YOU WANT TO BE IN AN UNBALANCE POOL? GO TO A PUBLIC GOVERNMENT RUN POOL - your eyes may burn (WRONG), you may see and old asian woman in the hot tub and very cloudy water (very wrong). they hire friends of government and don't train anyone and never check "against themselves", but they harass the hell out of private companies if they are not democrat affiliated
GOVERNMENT PUBLIC POOLS ARE THE WORST BALANCE POOLS - it is total pot luck if it is right or very wrong