Dimension One Spas...
Not all spas have ozone issues.. Ozone has an extremely short life span in a hot tub... Dimension One figured out that if you take the ozone and pipe it around the entire tub before it comes back into the spa, all the ozone(O3) will have turned to O2 by the time it completes the trip. So it still sterilizes the water, but has zero off-gassing of O3.
So what happens if someone gets into the pool with a skin rash or some other type of infection? The good bacteria and microbes take care of it and everyone lives happily ever after...
How long have people been swimming in ponds, lakes, streams, etc.? If water has bad stuff in it, there will be an issue, but that bad stuff is not transmitted from person to twater to person contact...
Now if someone has a bowell movement in your bio pool, you may have water issues for a few weeks (until the plants and microbes do their thing). But then again, someone took a dump in your pool, your issues are more than just water quality...
