RO water should be odourless and clean-tasting. A change in taste is your purifier telling you something needs attention.
Filters are overdue
Sediment and carbon filters should be changed every 6–12 months. Old carbon filters cause a musty smell.
Membrane is exhausted
A worn RO membrane lets in dissolved salts, giving a salty or metallic taste. Membranes last 2–3 years.
Storage tank needs cleaning
Bacteria can grow in the tank over time. An annual tank sanitisation removes odour.
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