I normally would not recommend such long cycles on the main pump for numerous reasons, but as a once-in-a-while thing it would be fine.
Great spa-tech knowledge here, would have been a tragedy if I had implemented this and then found the ozone only ran for 30 minutes instead of the 12 hours.Frankly, I'm not sure it's worth the expense under those circumstances but it's your money, if you want to try it out go for it. Most systems turn off the ozone if jets are on or for 30 minutes any time a button is pushed, so you'll have trouble running it during use anyway.
Ok, thanks very much for that feedback! Might be a logarithmic reduction curve due to needing physical proximity between the ozone and remaining ever reducing population of Chlorine.Now you're asking science questions to a repair man. I don't know why the depletion slows as the ppm drops or nearly stops at 0.5, I just know what I find in my water and read online. Maybe it's due to less than 100% exposure to the ozone.
Ozone output must be compatible with the injection system or problems can arise. I recommend whatever it started with, as that's what the system is designed for.
Cool. Next tub will be a 24/7... I've just sunk 100+ hours into sanding and re-finishing this one and 2/3 of everything has been replaced now so I'll try to enjoy this one for as long as I can!Tubs that use the main pump for ozone injection are impossible to know flow rates, and therefore exposure turnover rates, without installing an inline flow meter. Most are not very efficient compared to a 24/7 and are mostly there as a selling point since major brands with 24/7 systems make a big deal of it. How it will effect yours I do not know, but most people with tubs like this never notice it fail.
Many thanks for clarifying your comment on the 0.5FC.