Last year april month , I bought aqua maxima ro plus uf purifier .i bought it only for brand name.first they gave good response.they gave some instructions for use it, if use at summer times ( 11am to 4pm) filters are affected by heat. So we not use at morning times. Use after evening times only.PH level of water also good before filtered it .After 5 months, machine not worked.phone to local distributor and seller mr.muthukumar, he is not response well.so call to customer care frequently.they also is not willing to take care it.email and whattsapp helped to me .i sent photo and videoes of bill, warrenty card and photo copy of dead machine.they come to resolve it after 75 days.in between I am very disappointed by aqua guard /eureka forbes.i lose money to buy drinking water .so viewers not buy product for brand name.select product for good service providers.otherwise we lose our warranty and guarantee peroid.