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Frequently asked questions

UV-C light disrupts the DNA of bacteria, viruses and other microorganisms as water passes the lamp, preventing them from reproducing — so pathogens are neutralised without adding any chemicals to your water.

Spectrum SABRE UV lamps are rated for roughly 9,000–12,000 hours of continuous use — around one year of typical operation — after which UV output drops below the level needed for reliable disinfection, even if the lamp still lights up. Most systems include an indicator to flag when it's due.

Yes. The quartz sleeve surrounds the lamp and needs to stay clean and scale-free for UV light to pass through effectively — a scaled or discoloured sleeve reduces dose even with a fresh lamp. We'd recommend checking and cleaning it at each lamp change, more often on hard water supplies.

Yes — UV disinfection relies on light penetrating clear water, so cloudy or sediment-laden water reduces its effectiveness and can shield organisms from the UV dose. A sediment pre-filter ahead of the UV unit (and iron/manganese removal if relevant) is essential for reliable performance.

UV disinfection is one of the most common ways to meet the microbiological safety requirements for a private water supply, provided the water is pre-filtered and the correct system size is matched to your peak flow rate. We'd recommend a water test first so we can confirm sizing and whether any pre-treatment is needed alongside the UV stage.