Category: Water Science • 6 min read • August 2026
What is TDS in Drinking Water? Ideal TDS Levels for Hyderabad Homes
Understand Total Dissolved Solids (TDS), WHO drinking water guidelines, health risks of ultra-low vs excessively high TDS, and optimal mineral levels.
What Exactly is TDS?
Total Dissolved Solids (TDS) measures the combined total of organic and inorganic substances dissolved in water, expressed in milligrams per liter (mg/L) or parts per million (PPM). These include minerals like calcium, magnesium, potassium, sodium, bicarbonates, chlorides, sulfates, and heavy metals.
What is the Ideal Drinking Water TDS?
According to the World Health Organization (WHO) and Bureau of Indian Standards (BIS): Below 50 PPM is demineralized and acidic; 80 to 150 PPM is OPTIMAL (sweet taste, rich in healthy minerals); 150 to 300 PPM is good; 300 to 600 PPM is fair; Above 1,000 PPM is unfit for direct human consumption.
Key Takeaways & Recommendations
- TDS between 80 and 150 PPM is ideal for human health and taste.
- Zero TDS or <30 TDS water lacks essential minerals and leeches body electrolytes.
- Borewells in Hyderabad often exceed 1,500 PPM TDS requiring RO filtration.
Expert Water Care Advice for Hyderabad Residents
Because water quality across Hyderabad varies drastically depending on whether your home is connected to HMWSSB river supplies or deep underground borewells, regular 6-month filter inspections and periodic digital TDS testing are essential.
Rainbow Aquafresh Systems provides doorstep water quality audits, genuine replacement spares, and emergency breakdown repair across all Hyderabad localities within 90 minutes. Call our technical helpline at +91 8885556965 for expert assistance.