How to Find the Best Under Sink Water Filter System? Nowadays drinking clean and pure water has become an essential necessity. Due to the dangerous new age contaminants in our drinking water, it has made us install water purifiers in our homes. In general, people with normal TDS levels prefer wall-mounted water purifiers. But, for the consumers with higher TDS level and a compact room, they have the option of going for “undersink water purifier”. How to Find the Best Under Sink Water Filter System? The answer is modernization. Yes, the kitchen was modernized over the years. And everyone's choice is an over-the-counter water purifier.