Last year I bought an Aquaguard Reviva RO. I must say the experience with the RO has been pathetic. First the adapter unit went bad and was changed 8 months from purchase and today(18 months after purchase) the technician said that now the motor requires replacement(expenditure approx- Rs 5000).
I own a Kent RO system in my other house and since last 3 yrs there has been no issue. Truly disappointed with your product. PATHETIC quality of product I must say.