Good to know.
I asked because I am using the same model since 2013.
If you have a technical hand and are a DIY kind of guy feel free to contact me if you face any kind of issues with the product.
I am well aware of all its parts (working) and the issues that may arise. I will be for than happy to help you as it is quite easy to service at home.
My only suggestion would be to go for a higher TDS not less than 150. I mean to say low TDS water is not all good for health.
The option to increase or decrease the TDS is provided(small tap) inside the Unit but you will need a TDS meter to check and adjust.
Kindly read more about TDS and advisory released by the government(& WHO) from time to time.