Consumer Voice - - Comparativ­e Test -

Pack­ag­ing | Mark­ing | User man­ual | Work­man­ship and fin­ish | Con­ve­nience


As per the na­tional stan­dard, pack­ing of pu­ri­fier shall be ro­bust to en­sure ad­e­quate pro­tec­tion from trans­porta­tion dam­age.

All the brands were found to be suit­ably packed.


The wa­ter pu­ri­fier shall be marked with de­tails like brand name, pro­duc­tion se­rial num­ber, name and ad­dress of the man­u­fac­turer, man­u­fac­tur­ing date and MRP. Crys­tal and Uni­tex were found de­fi­cient in pro­vid­ing most of the in­for­ma­tion. Man­u­fac­tured/ Mar­keted by in­for­ma­tion was not men­tioned.

User man­ual

The user man­ual was checked for in­stal­la­tion, main­te­nance and clean­ing in­struc­tion, oper­a­tion in­struc­tion, war­ranty, tech­ni­cal spec­i­fi­ca­tions and dual lan­guage. Pure It, Aqua Sure, Ba­jaj and Tata Swach have given all the re­quired in­for­ma­tion. Crys­tal, Usha and Uni­tex have not given the re­quired in­for­ma­tion.

Work­man­ship and fin­ish

A five-mem­ber panel gave rat­ings on this as­pect. All the tested brands have good to ex­cel­lent work­man­ship and fin­ish.


Panel mem­bers looked for how con­ve­nient the prod­uct was in terms of in­stal­la­tion, clean­ing of fil­ter car­tridge and their re­place­ment.

The con­ve­nience fac­tor varies from con­ve­nient to very con­ve­nient.

Based on the over­all test re­sults, it is con­cluded that chemical-based wa­ter pu­ri­fiers gives us clear and al­most safe drink­ing wa­ter where the qual­ity of tap/ ground wa­ter is not de­pend­able. This type of pu­ri­fiers does not claim re­moval of heavy metals and pes­ti­cides; how­ever, when tested, the heavy metal re­duc­tion was found to be around 9.4 per cent to 93 per cent and pes­ti­cides re­duc­tion was be­tween 30 per cent and 100 per cent. The re­moval of bac­te­ria (such as E. Coli) was be­tween 99 per cent and 100 per cent, and virus re­duc­tion was be­tween 90 per cent and 100 per cent.

These pu­ri­fiers may be rec­om­mended for ru­ral and town ar­eas where elec­tric­ity and af­ford­abil­ity is a ma­jor con­cern. The cost of prod­uct ranges from Rs 1,300 to Rs 2,500 and the low op­er­at­ing cost makes a huge dif­fer­ence in com­par­i­son to other pu­ri­fiers (R/O and UV sys­tems). The R/O sys­tem is rec­om­mended where to­tal dis­solved solid (TDS) is higher and the UV sys­tem where TDS is on the lower side.

Non-elec­tric stor­age wa­ter pu­ri­fiers re­quire reg­u­lar main­te­nance and clean­ing of fil­ters, and change of car­tridge within 15 days/30 days; so care is re­quired for these to work ef­fi­ciently (must read user man­ual). Lastly, only go for those pu­ri­fiers that men­tion their ‘man­u­fac­tured/mar­keted by’ de­tails on the pack­ag­ing so that you can get ser­vice on your doorstep and on time.

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