Ok cool, thanks for the added info. And if someone has or recently had the runs, there sure as he!! not getting in my hot tub! YACK! I'm not convinced I would be spraying everyone with clorox and water before entry anyway 
My one friend that has a tub said before people get in his at a party he tosses in some chlorine ahead of time, not much just enough to bump it up before they get in so I'd likely do the same.
My one friend that has a tub said before people get in his at a party he tosses in some chlorine ahead of time, not much just enough to bump it up before they get in so I'd likely do the same.