This Question is in regards to the scenario brought up buy Dr. Spa. " Here's another scenario. Your chlorine levels are fine. Two people get in the spa and within 15 minutes the chlorine is down to zero. A third person gets in who IS infected. There's no sanitizer in the water and that person infects EVERYONE. You get out of the spa and dump in some chlorine. testing the water shows proper sanitizer levels then. "ok, so all's good", from what you can see. BUT, too late, you got infected and probably wont notice it for a day or so. And you'll SWEAR the water was and has always been properly sanitized. This is something that happens with some frequency. " Sorry I don't know how to bring up quotes of other people, but in regards to this scenario, what can be done to help protect the unaffected people without everybody lounging in super chlorinated water.
Blizzard