I have been using this for almost 3 months ago. It is an excellent purifier and the service provided by them was completely satisfied. During installation, Team had suggested two way switch which made my life easier during back wash. Team tested the water and provided solution in a very short period and Installation has been completed in a single day. Till date, no major issues identified andfor any clarifications, Mr. Manikandan is always reachable. Overall Highly satisfied and strongly recommended to everyone.