Plumbers in Bergheim, Texas

How UV disinfection actually works, and what it's good for

A UV system treats water continuously as it flows past a lamp, rather than treating the well itself the way shock chlorination does.

UV light disrupts bacteria and other microorganisms as water passes the lamp, without adding any chemicals. That is a genuine advantage for households that would rather not maintain a chlorine feed system.

It treats water at the point of use continuously, unlike shock chlorination, which is a one-time treatment of the well itself. For a well with a recurring source of contamination, ongoing treatment addresses the symptom every time, even if it doesn't solve the underlying cause.

Water clarity matters for UV effectiveness. Sediment or turbidity can shield organisms from the UV light, so a sediment filter ahead of the UV unit is usually necessary, not optional, for the system to actually work.

What it actually needs, and where it falls short

A UV system is low-maintenance compared to a chemical feed system, but it is not maintenance-free, and it is not the right answer for everything.

The UV bulb needs annual replacement regardless of whether it still appears to be working. UV output degrades gradually and invisibly, so replacing on a schedule rather than waiting for a visible failure is the only reliable approach.

The quartz sleeve around the bulb needs periodic cleaning. Mineral buildup on the sleeve blocks UV light from reaching the water just as effectively as if the bulb itself had failed.

UV does not address a recurring source of contamination, only the water passing through it at that moment. If your well keeps testing positive, finding and fixing the actual source, a cracked casing, a compromised seal, surface water intrusion, matters alongside adding UV treatment, not instead of it.

None of this makes UV the wrong choice. It is simply a maintenance-based system rather than a set-and-forget one, and treating it that way from the start avoids the disappointment of a lapsed bulb going unnoticed.

How we work

We can test your well, install and maintain a UV system properly sized for your household, and help investigate why contamination keeps recurring in the first place.

We cover Bergheim, Boerne and the rest of Kendall County, and recurring well bacteria issues are something we work through regularly out here.