When UV belongs in a system
UV is standard on private wells in Collin County that have tested positive for coliform or E. coli, and on any well where the homeowner wants a safeguard against future contamination. It also shows up on municipal setups where the home has a large cistern, a long private line, or a rainwater blend.
Sizing and placement
The UV chamber must be sized to the home's peak flow so every gallon receives the required UV dose. A unit that is too small allows organisms to slip through at high flow. UV sits at the end of the treatment train, after sediment, iron, softening, and carbon, because it needs clear water to work. The installer will confirm every prior stage is delivering water clear enough for UV to be effective.
Maintenance
UV lamps are replaced once a year on a fixed schedule. The quartz sleeve is cleaned or replaced periodically. Most units have an audible or visual alarm if the lamp fails, which is a feature worth having.
What UV does not do
UV disinfects but does not remove taste, odor, hardness, iron, or dissolved solids. It works alongside filtration and softening, not in place of them.
Frequently asked questions
Do I need UV if my well has never tested positive?+
It is optional. Many homeowners install it as a safeguard, especially if the well is older, shallow, or near livestock.
How often is the lamp replaced?+
Yearly, on a fixed schedule. Even if the lamp still glows, its UV output drops below the disinfection threshold after about a year of use.
Will UV work on cloudy water?+
No. UV requires clear water. Sediment and iron must be filtered out first so light can reach the organisms.
Related services
- Reverse Osmosis SystemsUnder-sink RO systems for polished drinking and cooking water at the kitchen tap.
- Well Water TreatmentComplete treatment trains for private well homes in rural Collin County.
- Iron and Sulfur RemovalOxidizing filters that pull iron staining and hydrogen sulfide odor out of well water.