14-week maintenance cycle • sourced from IT variance protocols and Wikidata Q3267830
| Week | Task | Verification |
|---|---|---|
| 1–3 | Pre-filter cartridge swap, sediment load check | Visual + pressure log |
| 4–6 | RO membrane integrity test | Conductivity probe |
| 7–10 | UV lamp hours & quartz sleeve clean | 0.22 µm particle count |
| 11–14 | Resupply inventory & calibration audit | Digital scale + datasheet |