Which is better, UV or Ozone?
Both are highly effective for disinfection, however, ozone requires considerably more knowledge and maintenance to operate and maintain. With UV systems, you simply turn on the lamp and let it run. Ozone also takes up a great deal more space than a UV system.
Can I use UV with salt water pools?
In a salt water environment certain installation practices are required, however, UV will work effectively in a salt water pool.
Is there data to support what UV does?
Many studies have shown, and the US EPA recognizes, that UV is a highly effective method for disinfection and chloramines reduction.
What do Health Departments require?
State health departments view UV as a supplemental treatment system for both disinfection and chloramines reduction.
Are there cost savings by using UV?
The answer lies in investigating what the owner/operator is presently keeping chlorine levels at. If the owner/operator are operating at close to break point chlorination they can expect to realise a saving as they will be able to reduce consumption by operating safely at, or near, minimum code requirements with UV installed and operating correctly.
Why Medium Pressure instead of Low Pressure?
In a swimming pool application several factors contribute to the effectiveness of medium pressure lamps over low pressure lamps, namely medium pressure is more effective since the emission spectra of MP lamps are a better match to the UV spectra of chlorine and chloramines.
Will I still have to use Chlorine?
Yes. In a swimming pool environment UV systems do not treat all of the water in the pool in one single pass, as in other applications. Chlorine is still needed as a disinfectant. However, less is required.
What is typical lamp life?
Typically the average life of a lamp is around 12,000 hours, which equates to one year of continuous use or two years for an outdoor facility. However, lamp life will diminish if the system is frequently turned on and off.