The quality of your water is a direct link to the quality of your health.
If you're still using UV on your catchment system there are a few things you should know.
NSF/ANSI 55 separates UV water purification systems into two distinct classes. Class A UV water systems should be used with well or surface water (streams, lakes, etc.) and are designed to inactivate and/or remove microorganisms, including bacteria, viruses, Cryptosporidium and Giardia cysts from contaminated water. Class A UV systems are not intended for the treatment of water with an obvious contamination or intentional source, such as raw sewage, nor are they intended to convert wastewater to drinking water. They are intended to be installed on visually clear (not colored, cloudy or turbid) water.
Class B UV water systems, on the other hand, should be used with municipal water or treated water and are designed for supplemental bactericidal treatment of disinfected public drinking water, or other drinking water that has been tested and deemed acceptable for human consumption by the state or local health agency having jurisdiction. Class B UV systems are designed to reduce normally occurring, nonpathogenic nuisance microorganisms only. These systems are not intended for the disinfection of microbiologically unsafe water and may not make individual or general cyst claims. Microbiological health effects claims may not be made on Class B systems.
UV systems require power, have mercury in the bulb requiring it be delivered to the toxic waste collection held twice a year, must be changed out every 365 days, maintenance is required to keep quartz sleeve free from debris otherwise it blocks the light, and does not kill anything. The industry calls out Class B units for "inactivates" only. The owner/user of this water ingests everything alive in the hopes it will not reproduce inside of them. Size matters as well, with gallons per minute (GPM) varied for each unit. At a minimum a whole house requires 12 GPM.
According to the University of Hawai'i, Manoa, College of Tropical Agriculture & Human Resources, Hawai'i County Cooperative Extension Service, "Class B UV lights operate at a lower intensity and are made for treated water, such as county or city water. Check ratings before making a purchase."
Quantum Disinfection - no power required, no chemicals, no maintenance and kills.
Platinum Disinfection for whole house water disinfection is good for 200,000 gallon of water.
On an average this means a family of four lasts approximately 3 years.
The money you spend on electric; approx. $180 per year, time, gas and shopping for and changing out 3 UV bulbs, time & gas delivering old UV bulbs to toxic waste collection, cleaning / replacing the quartz sleeve, etc., you could drink your water with confidence and save a whole lot of $$$. Do the math. It makes total sense to have Quantum on your water supply.
This includes those on wells and municipal water.
Learn more of how Quantum Disinfection works :