@RDspaguy I'm not aware of any sort of air controls on my Bullfrog X6L spa that let me adjust the air in the jets like that. I can say that if there is something like that -- I haven't used it (admittedly, I'm a new hot tub owner). The jets *can* be turned which allows them to adjust the water pressure. Maybe that's what you mean? And I'll adjust them every so often. But they jets were all on high -- but have mostly always been on high like that (even before the issue). I'm not sure if you watched the video, but it's more than the water being "white" as in a whitewater rapid. But it's milky white and again, has an effervescence to the water.
But even if there was, knowing I haven't adjusted anything -- I'm not quite sure if that'd be the culprit because I've used the tub often and it doesn't do that *all* of the time. In fact, I was using it fairly regularly (just myself, maybe 45 min at a time) for two weeks before that happened again. But it's the second time that it's happened since I've owned the tub.
When I say "Balanced" -- I mean that all of my levels are in the acceptable ranges when I check using test strips (pH, alkalinity, chlorine, hardness, etc).
My maintenance routine is checking the water using test strips every day or at least every other day -- and if they're off, I'll adjust, as needed (meaning, I'll add pH increaser if the pH is low... alkalinity increaser if the alkalinity is low, etc). I use chlorine-free spa shock once a week. I'll add in the SaniChlor I mentioned after I use the hot tub or in the morning that I know I'm going to use it.
(BTW, I ended up just changing the water again and have been using it without issue since. Just hoping that issue doesn't rear its head again and I'm still perplexed as to why it's happened).