Understanding TDS Levels in Pune: What They Mean for Your RO Purifier
What TDS is, which range suits drinking water, and why municipal and borewell water in Pune can need different purifier settings.
What is TDS?
TDS (Total Dissolved Solids) measures the minerals, salts and other substances dissolved in water, usually in parts per million (ppm). It is a useful indicator of how your purifier is performing, though it does not tell you everything about water safety.
Which TDS range is good for drinking?
Indian drinking water guidance (BIS IS 10500) sets 500 ppm as the acceptable limit. Many households prefer purified water roughly in the 50–150 ppm range for taste, while keeping some natural minerals.
- Below 50 ppm: may taste flat; a mineral cartridge or TDS controller can help
- 50–150 ppm: a common comfortable range for drinking
- Above 500 ppm: above the acceptable limit; RO purification is recommended
Why your water source matters
Municipal supply and borewell or tanker water can differ widely in dissolved solids. Water with higher TDS puts more load on the RO membrane, so the purifier may need servicing more often.
Key takeaways
- TDS is measured in ppm; 500 ppm is the acceptable limit for drinking water in India.
- Very low TDS can taste flat; very high TDS needs RO purification.
- Aquatech includes a free TDS & mineral test with every service visit.
Sources
- BIS IS 10500:2012 — Drinking water specification — Indian acceptable and permissible limits
- WHO — Total dissolved solids in drinking-water — background on TDS and taste