Lake Water

Tadaga Jala (lake/reservoir water) is collected still water that does not flow continuously. It is heavier than river water and may cause channel obstruction (Abhishyanda). Lake water exposed to sunlight and wind becomes somewhat lighter and more wholesome. Stagnant water that does not receive fresh inflow becomes contaminated over time and should be avoided. Water from large, deep, clean lakes with lotus flowers growing in them is considered better quality.

• Guru (heavy)
• Abhishyandi (channel-blocking)

Water is of seven types: well water (kaupa), river water (nadeya), lake water (sarasa), pond water (tadaga), spring water (prasravana), underground water (audbhida), and rainwater (chauratya) (verse 7).

— Sushruta Samhita, Sutra Sthana, Chapter 45: Dravadravya-vidhi Adhyaya - On Liquid Substances

Lake water quenches thirst, gives strength, is astringent, sweet, and light.

— Sushruta Samhita, Sutra Sthana, Chapter 45: Dravadravya-vidhi Adhyaya - On Liquid Substances

Rainwater, Seasonal Collection, and Water Quality (Verses 7-17) Water is of seven types: well water (kaupa), river water (nadeya), lake water (sarasa), pond water (tadaga), spring water (prasravana), underground water (audbhida), and rainwater (chauratya) (verse 7).

— Sushruta Samhita, Dravadravya-vidhi Adhyaya - On Liquid Substances

Lake water quenches thirst, gives strength, is astringent, sweet, and light.

— Sushruta Samhita, Dravadravya-vidhi Adhyaya - On Liquid Substances