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Frequently asked questions

The quartz sleeve is the clear tube that separates the UV lamp from the water flow, protecting the lamp electrically while still allowing UV-C light to pass through and disinfect the water.

Look for scaling, discolouration, or hairline cracks — any of these reduce how much UV light reaches the water, even if the lamp itself is new. On hard water supplies, scale buildup is the most common reason for early replacement.

This depends on your water hardness and iron content — some installations need cleaning every few months, others go a year or more. Check it whenever you change the lamp, and clean sooner if you notice reduced flow or visible scale.

Sleeves are sized to the specific SABRE model and chamber length, so check your system's model number before ordering to make sure the length and diameter match.

Yes — the sleeve is a pressure boundary between the water and the lamp compartment, so a cracked or damaged sleeve can allow water into the electrical housing. Replace it promptly rather than continuing to run the system if you spot any damage.