Removing CC from indoor pool w/ UV or ozone?

[codybear]

I have a light load 2600 gal. covered indoor pool with ozone system. But I question if UV would better to eliminate CC. I see both are mentioned to help with an indoor pool, but my question is: is one better than the other for removing CC? The concern I have about ozone is getting it to dissolve in the water. I do have some damage on the bottom side of the cover where the water exits, so the ozone system is not perfect. Thus, I question if I should have gone UV instead.

For UV, I was thinking of adding the Paramount Ultra UV2, single bulb. Would this be a good choice if UV is more effective than ozone? If ozone is better, I will just limit the time it is activated so I do less damage to the cover.

 

[JoyfulNoise]

If it’s indoor you don’t want to use ozone. It will create an respiratory hazard. UV light is fine. Either Paramount or perhaps Pentair.

UV is best used AFTER you have been in the pool and you let it run BEFOR you increase the chlorine levels. You want to breakdown the organic bather waste as much as possible before chlorine can react with it. Chlorinated organic compounds, the kinds that cause your pool to have the persistent CCs you are measuring, are harder to breakdown than non-halogenated organics.

 

[ajw22]

You want a UV system, not ozone to rid your CC's.

You want a UV system that has the largest water volume you can get as only the water exposed to the UV will be cleared of CC's.

UV Systems - Further Reading

www.troublefreepool.com

 

[codybear]

I rephrased my question as the system came with ozone, but I question if I made the wrong choice. I'm not concerned about the cost to do it correctly. Just want to make sure I use the most efficient system and have seen comments suggesting either ozone or UV. It is sounding like UV was/is the correct choice.

 

[JoyfulNoise]

UV will help but some of the issue is simply volume … what you have is basically a very large hot tub as opposed to a swimming pool. So there is inevitably going to be a build up of persistent CCs no matter what you do. UV in conjunction with chlorine will help slow it down. Outdoor pools have a big advantage as they typically get lots of sunlight exposure all day and the UV from the sun helps to create more volatile CCs that then offgas from the water. It is quite common to see people with covered pools measure very consistent CCs only to see the CC levels drop once they open the cover and give the water a few hours of sunshine.