Luke warm doesn't do anything for my aching, overused, and sore craps-throwing right arm. Designate at least one hot tub as being the HOT tub and set the temperature at 98 degrees or more. At least that's at body temperature.
Yes!! Make it hot. Put up all the signs and disclaimers you need to, including no kids in the hot tubs.
"Warm tub" just doesn't have a ring to it....
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