While high TDS water creates taste and safety issues, low TDS water comes with its own set of problems. TDS (Total Dissolved Solids) represents the amount of minerals, salts and dissolved particles in water. Although pure water has extremely low TDS, it is not always ideal for drinking. Many households using aggressive RO systems or very soft municipal water unknowingly consume low TDS water, which can cause multiple concerns related to health, hydration and taste.
One of the biggest problems with low TDS water is mineral deficiency. Essential minerals like calcium, magnesium and potassium support healthy hydration, muscle function and overall wellness. When TDS becomes too low — usually below 50 ppm — these minerals are completely removed. Drinking such low-mineral water for long periods may not support proper hydration and can affect day-to-day energy levels.
Another noticeable issue is flat or bland taste. Low TDS water lacks the natural mineral structure that gives water its freshness and smooth feel. This is why households often complain that their RO water tastes empty or unnatural. Children especially avoid drinking extremely low TDS water because it tastes lifeless.
Low TDS water can also affect cooking and beverages. Tea and coffee may lose their natural flavor, and cooked food might taste different because essential minerals are missing. Balanced TDS adds clarity and enhances the flavor profile of everyday meals.
A major concern is when RO purifiers are configured too aggressively and reduce TDS more than necessary. Many standard RO machines lower TDS to 10–20 ppm, which is not ideal for daily drinking. Extremely low TDS may also cause light corrosion in metal pipes, kettles or appliances over long-term use, although this depends on the water source and material quality.
Low TDS water is also associated with reduced hydration efficiency. Because the mineral balance is missing, the body absorbs and retains such water differently. While it hydrates, it does not offer the same nutritional support as mineral-balanced water.
This is why modern RO purifiers now include TDS controllers or mineral retention technology to ensure the output stays within the healthy range of 70–250 ppm. Instead of removing everything, these systems remove harmful dissolved solids but retain essential minerals. Balanced water is not only healthier but also tastes better and supports regular drinking habits.
For families looking for an RO purifier that avoids overly low TDS and maintains the ideal drinking range, modern systems like Homvel are designed with intelligent TDS balancing. They ensure the output water is clean, safe and mineral-rich. More details are available here:
https://homvel.com/
Final Thought
Low TDS water may sound pure, but it is not ideal for daily drinking. The absence of essential minerals leads to flat taste, lower hydration quality and less enjoyable water. Balanced TDS between 70–250 ppm is best for health, flavor and everyday use.