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Ozone does something in a tub but possibly not much.It is as In Canada says a unstable O3 molecule that is looking to break the bond and will attach itself onto anything it can. It has been reported it can last up to a whole 22 seconds in the hot water. It's usefulness is probably associated with how much ozone an ozonator puts out and how much contact time it has to possibly attach itself to something. Keep in mind that in the microscopic world of electrons a 1/2 inch is as far as Pluto is to the Earth so that shows how effective it can be. Once the ozone bubble hits the water's surface it's done.Does ozone work - I can say after experimenting on my own tub that yes it does - a little. My tub got a whole extra day before clouding up with bacteria using ozone 24/7. My ozonator isn't the most powerful out there and maybe with a more powerful one it would last longer.But there can be downsides to an ozonator - it will attack the spa cover and spa pillows if it off gasses.I plan on replacing my ozonator with a more powerful one in a few months. I may not use it if it produces too much ozone and off gasses to the spa.
Does ozone work - I can say after experimenting on my own tub that yes it does - a little. My tub got a whole extra day before clouding up with bacteria using ozone 24/7. My ozonator isn't the most powerful out there and maybe with a more powerful one it would last longer.
I don't dispute any individual's experience with ozone but in my experience with my own spa and many hundreds I've dealt with in people’s yards I am a very firm believer in a good CD ozonator. The cheap $99 UV units aren't worth much IMO so I always want to qualify my statements that it be a good ozonator, have a good long contact chamber and this is also where I like circ pumps because you can get the ozone 24/7 (though I'd still like a good ozonator on a spa that filtered 4 hrs per day with a 2-speed pump if that's your setup).
Hey Vinny I don't want to sidetrack this but in my experience CD and UV are two totally different animals. Now I know this will cause a stir but I'll say it anyway. Only CD units generate any significant amount of ozone that is not absorbed by the unit itself. UV in the water treatment industry, is used a a sterilizer the fact that it produces a trace amount of ozone is only a byproduct and not its principal method. The amount of ozone a UV bulb produces is actually absorbed by the lamp itself. Basically it comes down to CD produces ozone gas along the same principal as a municipal water plant system does. UV is a sterilizer also used commercially but mainly in the waste water industry. Now as for what CD unit is best, sorry I can't help you there
My idea was to add a long length of tubing to the exsisting tubing to act as a contact chamber and hope for the best. As I have mentioned, my tubing now is approx 10' long so if I added another 14 to 20 ' I would double to triple the length ozone would have to travel and hopefully would bump into more stuff. I was even going to coil it and position the coils vertically to have the water travel up and down to give the bubbles more time to absorb ... mad scientist at work..