The RO membrane is the heart of your purifier — it's what actually removes dissolved impurities. Unlike sediment and carbon filters, the membrane can last a few years, but its exact lifespan depends on input water quality, TDS levels and how well the pre-filters have protected it.
Signs a membrane may be failing include a noticeable rise in TDS of the purified water, reduced output even after filter changes, or water that no longer tastes as clean as it used to. A technician can measure input and output TDS to confirm membrane health.
Replacing the membrane at the right time keeps your water genuinely safe. Using the correct membrane rating for your water is just as important — our team can advise on the right specification for your system.
Need help with your water system?
Rupali Enterprise provides RO sales, service, spare parts and AMC across Guwahati. Reach out and we'll help you find the right solution.