Piya Sharma, Jeiya Khurana, Aditya Tanwar, Mohammad Umar and Arjun Singh Bedi (who like to call themselves Fluid Force) says a standalone RO wastes 3 litres of water for every 1 litre that it purifies.
Anand Gopakumar explains that issues with such learning are mainly found in students and freshers coming from the low-income strata of the society—they find it quite challenging to work in teams, for example. And that's where TAP steps in.