What is MTDS in Water Purifier?
In recent times, environmental degradation and pollution have posed serious threats to our water sources, making it imperative to take precautions before consuming water. The prevalence of water purifiers in households is a testament to this growing concern, as they play a crucial role in providing clean and safe drinking water.
With a plethora of water purifier brands offering various technologies and mechanisms, it’s easy to feel overwhelmed by the terminology associated with them. One such term often encountered is MTDS, which stands for Manually Total Dissolved Salts Controller. But what exactly is MTDS and how does it contribute to water purification?
MTDS, contrary to popular belief, is not a filter but a regulator designed to control the Total Dissolved Solids (TDS) level in drinking water. TDS refers to the concentration of dissolved solids in water, encompassing inorganic salts and a small amount of organic matter.
The MTDS regulator is integrated into water purifiers and connected to two water inlets: one from the purifying source (e.g., RO membrane) and the other from various sources based on filtration type. It effectively adjusts these inlets to achieve the desired TDS level in the output water.
Advantages of MTDS
- Enhanced Taste: By regulating the TDS level, MTDS enhances the taste of water, ensuring a more palatable drinking experience.
- Desirable TDS: MTDS allows users to maintain an optimal TDS level for drinking, preventing water from becoming excessively demineralized.
- Cost-Effective: MTDS offers a cost-effective solution for TDS regulation compared to other methods like mineralization, saving both money and effort.
- pH Balance: Maintaining an ideal pH level, MTDS ensures water suitability for human consumption and general use.
MTDS vs Mineralization
While mineralization involves adding minerals to water post-purification, MTDS differs in that it enables users to control the output TDS level. Additionally, MTDS is more economical and requires minimal maintenance compared to mineralization methods.
Summing Up
Achieving an optimal TDS level (ideally 100-300) in drinking water is essential for health and taste. MTDS controllers offer a practical and efficient solution, ensuring clean and balanced water for consumption.
Also Read: TDS of drinking water in India
Note: Information provided above is for general knowledge. It is not a set standard for maintenance. Your water purifier’s service needs depend on factors like water quality, usage, placement and more. Trust that our technicians know the best.

