CD Ozone Pool Purification Systems Beat UV Ozone

DEL’s Corona Discharge (CD) ozonator technology is superior to UV-generated ozone in every respect except that it has a slightly higher purchase price. For reliable pool water sanitation that is durable and low cost to operate, the CD ozone technology pioneered by DEL is one of the best wide spectrum pool sanitizers you can buy.;

• DEL CD ozonators produce a higher concentration of ozone than UV ozone generators in comparable sized pools – they are more effective.
• Operating costs of CD ozone are substantially lower than UV, using 70-90% less electricity.
• DEL electrode-based ozonators last years longer than UV lamps. DEL dependability is part of every DEL product.

Combined CD Ozone + Germicidal UV is Better Yet

When ozone is combined with germicidal UV light to create an Advanced Oxidation Process (AOP), you have the best of both worlds. The AOP system produces even stronger oxidation than CD ozone alone.  It is important to note that the germicidal UV light used in the DEL Ozone Solar Eclipse AOP is NOT the same wavelength as light used for generating ozone, and it makes all the difference.  In the Solar Eclipse, the UV light at 254 nanometers wavelength is absorbed by ozone, starting the chemical reaction that characterizes Advanced Oxidation Processes.  Read more about AOP on the Solar Eclipse page.

UV (ultraviolet) Ozone Has Some Shortcomings

UV ozone bulbs wear out frequently (they are less durable than the CD electrode technology used in DEL ozonators) and need to be replaced. The problem is that the bulbs may continue to generate illumination even after they stop producing the wavelengths that generate ozone. There may be light, but there is no sanitizing radiation.

UV systems consume up to 80% more electricity than comparably sized CD ozone generators, and they create much more heat. Coupled with the fact that you don't know for sure if your lamp is producing the right wavelengths to generate ozone, owners need to replace lamps very frequently.

Because of the advantages of CD ozone over UV ozone, DEL has discontinued making UV ozone systems.  Spare bulbs and replacement parts for these older units still can be found online.

Choose CD Ozone over a UV System

Ozone is the best all around pool water purifier. Between CD ozone and UV ozone, the right choice is the corona discharge ozonator by DEL.