Filters are consumables, but they should be replaced when they are actually spent, not on a sales calendar. We check condition first and replace what your purifier needs.
Most domestic RO purifiers use several pre-treatment stages before the membrane, and a polishing stage after it. Each has a different job and a different wear pattern.
There is no universal interval. Filter life depends on your input water quality, daily litres consumed, the purifier model and the manufacturer's guidance. A household on silty borewell water will choke a sediment filter far faster than one on clean municipal supply.
Practical signs worth a check are slower filling, a change in taste or odour, visible discolouration of the sediment cartridge, or a rise in output TDS.
The technician isolates the supply, opens the housings, inspects each cartridge, replaces the ones that are spent, refits with fresh O-rings where needed, flushes the system, and checks for leaks and output quality before closing up.
FAQ
Aqua Life Guard purifiers
See our RO, RO + UV, alkaline, copper and high-TDS models - supplied, installed and serviced across Kanpur by our own technicians.
Tell us what's wrong with your RO purifier and we'll help you find the right service.
