Best Water Purifier for Kanpur Homes: RO vs UV vs UF

Match the technology to your supply

The single most useful decision rule is this: RO handles dissolved salts and hardness, UV handles microorganisms, and UF handles suspended particles and some microbes without electricity. Your supply decides which of these you need.

• Low-TDS municipal supply, microbial concern only - UV or UV + UF is often enough
• Moderate municipal supply - RO + UV is the common choice
• Municipal alternating with tanker water - RO + UV + UF handles the variation
• Borewell or high-TDS supply - RO with correct membrane and a TDS controller
• Frequent power cuts with a stored supply - a UF stage keeps working unpowered

Sizing it for your household

Storage capacity should match how much purified water you draw between refills, not just family size on paper. A family of four drinking and cooking with purified water typically wants a comfortable buffer so the tank is never empty in the morning.

For shops, clinics, offices and restaurants the calculation is different again - peak demand within an hour matters more than daily total, and a commercial unit is usually the right answer.

Features worth paying for - and ones that are not

A TDS controller genuinely improves taste on high-TDS input. A transparent or easily opened cabinet makes servicing faster and cheaper over the years. Auto shut-off protects the pump. Mineral, alkaline and copper stages are a matter of preference rather than safety - useful if you like the taste, not a substitute for correct purification.

Be cautious with claims that cannot be verified at your tap. The honest test is a TDS and flow reading before and after installation, which we do as part of every fitting.

Installation and after-sales matter more than the badge

A well-chosen purifier installed badly will still leak, run noisily or fail early. Correct mounting, a clean plumbing connection, sensible drain routing and a post-installation performance check make a bigger long-term difference than the brand name on the front.

Equally important is who services it afterwards. Aqua Life Guard supplies, installs and services our own models across Kanpur, and we also service multiple common RO brands as an independent provider.