A great invention in the hands of unethical, unprofessional bunch of cheats who intentionally sell malfunctioning units, disappear after payment, are clueless most times on problems, the list goes on and on. You get a free quarterly servicing, for which the personnel NEVER carry a log, nor do they come on their own.
I have faced ALL of the above problems.
a) The Kent Grand RO sold to me from dealer Water World was faulty from the start. It kept overflowing and the servicing guys kept saying it was an alignment problem. They changed the location, some parts, put clamps. Finall friends told me it was a common problem - a valve needed to be replaced. By then the warranty was over. Kent charged me EACH time. They intentionally didnt replace the valve knowing fully well THAT was the problem. Meanwhile, on one occasion my family, my 3-yr-old kid and guests(with kid of their own) all fell sick with gastroenteritis due to contaminated water overflowing into the purified chamber.
b) My friend bought a commerical unit. Once payment was made, the dealer never showed up, neither for quarterly servicing nor for repairs. The water simply stopped a little over a month. This time it was not alignment, but "pressure" problem which several servicing visits did not rectify.
Finally I called Sangam, South Zonal Manager, whose technician came two days late. After other had dilly-dallied for 3 weeks, he said the filter had to be changed. THE FILTER CANDLE WAS SUPPOSED TO LAST 6 MONTHS! My friend refused to pay for the candle. The man Sangam had neither the courtesy to get the problem solved out of goodwill nor the ethics to admit his people took everyone for a ride for a good 6 weeks!
Till date both filters are as is.
You are better off buying mineral water in Bangalore.
Kent RO is a big scam. They swamp huge apartment complexes, increase prices at whim once they sense a demand, and purposely sell malfunctionin units. As for their great ambassadress Hema Malini, she is ON the board of directors.
I am considering going to the consumer court. Beware: Im sure they have a handbook of terms to use to fool the customer, most commonly citing "alignment problem saar" or "pressure problem". Arrrrrgh!