Yes. I made a mistake buying this unit. Never go for this model no spares or disposables like filter available in market. and ACMC is too expensive 7K almost 1/3rd of the cost of the unit. Single service visit costs 700 rs plus spare cost which for pre-filter alone comes around 1K. During the warranty period, itself I was having trouble with my pre-filter but they never changed it and washed and reused and the problem of low output reappeared after a day. They waited till the warranty is over so that they can charge for the spares.This is outright exploitation. I am planning to accept my mistake and dispose this model and get a normal water purifier which has spares available at market. I would never go for any ZeroB products again no matter how superior they claim. Their maintanance cost is prohibitive.