Choosing a purifier gets easier once you know your water source and its TDS. Use a ₹300 TDS meter or ask our technician for a free test.
Quick decision chart
- **Municipal water, TDS below 200 ppm:** UV + UF is enough.
- **TDS 200–500 ppm:** RO + UV with a TDS controller.
- **TDS above 500 ppm or borewell/tanker water:** RO + UV is essential.
- **Hard water with scaling:** RO with a mineral or copper stage.
Signs you need RO
- White deposits on taps and kettles
- Salty or bitter taste
- Borewell or tanker supply
- Known fluoride, arsenic or nitrate issues in your area
Signs UV is critical
- Stored water in overhead tanks
- Monsoon season contamination
- Young children or elderly at home
Why most Indian homes pick RO + UV + TDS
Water quality changes with seasons and supply. A combined system handles both dissolved salts and germs, while the TDS controller keeps minerals in balance.
Bottom line
Not sure what you need? iDrink tests your water for free and installs the right RO + UV + TDS model on rent from ₹370/month, with a 30-day free trial and free maintenance.