Water TDS and Effect of TDS on Health @healthcocktail07 Disclaimer - This blog is for the general public. Previously in the past Era, we have some written parameters in the ayurvedic text for drinking water but no instrument, Aacharya perform some Prikshan (परीक्षण) and after Parikhhsa, they will use that water. even they have categorized river and their flow i.e. toward east facing or toward west-facing. West-facing river water is considered light & healthy for the body, In comparison to East-facing rivers. they use terms like laghu ( light) or guru ( heavy) ( Ref ayurveda ) for more one can go through Ayurved Samhita Aasthang hrudyam (अष्टांग हृदयम). With the passage of time new scientific inventions did. as science grows new techniques develop new parameters come to the knowledge and make it safer for human use. one of the major threats from water pollution came to knowledge i.e, water born diseases- cholera & hepatitis. various agency work on water sanitization and supply