If float tank water is safe, in part because of all the salt, then why is there such a huge emphasis in the industry for water treatment? After all, there haven't been any reports of anyone getting sick because of floating.

Ashkahn and Graham tackle this question and challenge the idea on its face, because, well, just because something hasn't been reported doesn't mean it doesn't happen, and given how little is known about water treatment in float tanks, it's a good idea, as an industry, to minimize the risk of infections and illness as much as possible. Really, there's a lot of reasons, from peace of mind, complying with health regulation standards, and even marketing, to maintain your float tank solution to as high a standard that you can.