Water quality is vital for maintaining good health, and Total Dissolved Solids (TDS) is a key indicator of water purity. A TDS level of 20 mg/L or ppm suggests a very low concentration of dissolved substances, but is 20 ppm TDS water good for health? This level often signifies water that is free of most impurities and possibly ideal for consumption but may impact water taste. In this blog post, we will explore TDS in general, the benefits and concerns of low TDS, and how to measure TDS in your drinking water.
Understanding TDS and Its Impact on Health
Total Dissolved Solids (TDS) refer to the combined content of all organic and inorganic substances contained in a liquid in molecular, ionized, or micro-granular suspended form. According to the World Health Organization (WHO), TDS in water comprises inorganic salts such as calcium, magnesium, potassium, sodium, bicarbonates, chlorides, and sulfates, and some small amounts of organic matter that are present in a liquid in ionized, molecular, or micro-granular suspended form (“dissolved”) in water. TDS levels are an indicator of water quality, with lower TDS indicating higher purity. TDS levels are typically measured in milligrams per liter (mg/L) or parts per million (ppm), both of which denote the same concentration level. Essentially, 1 mg/L is equivalent to 1 ppm.
When assessing the impact of TDS on health, it’s important to consider that TDS itself is not harmful at low to moderate levels. In fact, the minerals that contribute to TDS are essential for health. They play a variety of roles in bodily functions, such as bone health, fluid balance, and the functioning of the nervous system. However, excessively high TDS levels can result in undesirable taste, which could be salty, metallic, or bitter. Furthermore, very high TDS levels can also be an indicator of harmful contaminants in the water like heavy metals and other pollutants that are hazardous to health.
The World Health Organization (WHO) does not set a maximum level for TDS in drinking water, but levels above 1000 ppm are generally considered unsatisfactory for taste. The WHO does mention that a TDS level of 600 ppm is good, but this is mainly on taste as no health-based guidance has been established for TDS. A TDS level of 20 ppm is extremely low, indicating that the water is free of most dissolved substances. While this may suggest high purity and could be perceived as beneficial for health, the absence of minerals might not make it the ideal choice for everyone. The body needs certain dissolved minerals that it cannot produce, and these are often derived from drinking water.
While 20 ppm TDS water is likely to be pure and free from contaminants, it’s essential to balance this with the need for minerals in your diet. Drinking water should not be the sole source of minerals, but it can contribute to your overall intake. Ensuring a comprehensive diet that includes mineral-rich foods can complement the consumption of low-TDS water, creating a balanced approach to health and hydration.
The Benefits of Low TDS Water
Water with a TDS measure of 20 ppm is considered to have very low mineral content. While the health implications of such low TDS water can be a topic of debate, there are several benefits associated with it that are worth considering.
Firstly, low TDS water is typically characterized by its superior taste. Without the presence of heavy minerals and contaminants, the water is crisper and more refreshing. This can be particularly appealing to those who are sensitive to the taste of chlorine, sulfates, or other substances commonly found in municipal water supplies. This heightened taste profile can encourage increased water consumption, which is essential for maintaining hydration, aiding digestion, and supporting overall health.
Another benefit of low TDS water is its utility in household appliances. High levels of TDS can lead to the build-up of limescale in pipes and on fixtures, which can reduce the efficiency and lifespan of water heaters, boilers, and washing machines. Low TDS water, conversely, minimizes the potential for such build-up, promoting the longevity and proper functioning of these appliances.
Low TDS water is also often preferred in various industries where water purity is crucial, such as in pharmaceuticals, laboratories, and electronics manufacturing. In these settings, the absence of extraneous particles can prevent contamination of sensitive products and experiments.
From a health perspective, water with a TDS level of 20 ppm virtually eliminates concerns over harmful contaminants like lead, nitrates, and arsenic, which can be present in higher TDS water. It also reduces exposure to potentially harmful substances that could be part of a municipal water supply due to industrial run-off or agricultural pollutants.
However, it is essential to maintain a balanced view regarding low TDS water. The absence of minerals means that individuals must ensure they receive sufficient minerals from other dietary sources. For most people, the health benefits of consuming low-TDS water include improved taste, reduced contaminant exposure, and less strain on household appliances. When paired with a balanced diet, low TDS water can be a valuable part of a healthy lifestyle.
Possible Concerns with Ultra-Pure Water
While the advantages of low TDS water, such as that with a TDS level of 20 ppm, are quite compelling, it’s crucial to address some concerns associated with the consumption of ultra-pure water. These concerns mainly revolve around the lack of minerals and the potential for the water to affect the body’s homeostasis.
Ultra-pure water, by its very nature, is devoid of minerals such as calcium, magnesium, and potassium, which are essential for human health. These minerals contribute to bone health, heart function, and nervous system operations. Regular consumption of water with a TDS of 20 ppm means that one would have to compensate for these missing minerals through diet or supplements. If not adequately addressed, this could lead to mineral deficiencies, especially in populations with restricted diets.
Another concern with ultra-pure water is its potential to leach minerals from the body. Because of its high solvency, when this type of water enters the system, it can absorb and flush out electrolytes and trace minerals from the body’s tissues, potentially leading to an electrolyte imbalance. This is particularly critical after intense physical activity when the body loses salts through sweat.
There is also the issue of the water’s taste. While some people prefer the clean, crisp taste of low TDS water, others might find it flat or bland due to the absence of minerals that typically enhance the flavor of water. This can discourage some individuals from drinking enough water, leading to inadequate hydration.
Furthermore, ultra-pure water is highly reactive with metals, so it can corrode metal pipes and containers, leading to increased levels of metal in the water if it’s not stored properly. This reactivity can also make it unsuitable for cooking, as it may affect the taste and quality of food by pulling minerals out of the food and into the water.
While low TDS water has its place in both personal use and various industries, it is not without its potential drawbacks. These concerns do not negate the benefits but rather highlight the need for a comprehensive approach to water consumption that ensures a balance of purity and mineral intake. Consumers need to consider their overall diet and health needs when choosing their water sources.
How to Measure and Adjust TDS in Your Drinking Water
Understanding and controlling the Total Dissolved Solids (TDS) in your drinking water is essential for ensuring its quality and suitability for consumption. Measuring the TDS level provides insights into the concentration of dissolved substances in your water, which can include minerals, salts, and metals.
Measuring TDS Levels
The first step in managing TDS is measurement. TDS meters are widely available, easy to use, and provide instant readings. Here’s how you can measure TDS:
- Purchase a TDS meter from a reputable supplier. Look for one with automatic temperature compensation, as temperature can affect TDS readings.
- Rinse the sensor of the TDS meter with clean water before use to ensure accuracy.
- Submerge the sensor end of the meter into your water sample and wait for the reading to stabilize. The TDS level is typically displayed in parts per million (ppm).
- Compare the reading to relevant health guidelines or the taste preferences of your household. A TDS level of 20 ppm is considered very low and signifies very pure water.
Adjusting TDS Levels
If your water’s TDS level is not within the desired range, there are ways to adjust it:
- Reducing High TDS: If the TDS level is too high, consider a filtration system. Reverse osmosis (RO) filters are particularly effective at lowering TDS by removing a large percentage of dissolved substances.
- Re-mineralizing Low TDS Water: For water with a TDS level that is too low, you can increase the mineral content. This can be achieved by:
- Adding mineral drops or tablets, which are specially designed to enhance water with a balanced mix of essential minerals.
- Using a re-mineralization filter, often used in conjunction with RO systems, to add beneficial minerals back into the water.
- Natural mineral infusion by storing water in mineral-rich clay or stone containers can also be a traditional method of adding minerals back to the water.
It’s important to ensure that any method used to adjust TDS levels is safe and does not introduce contaminants. For instance, when using re-mineralization filters or mineral drops, it’s important to follow manufacturer guidelines and use products that are certified for potability.
Regular monitoring and adjusting of TDS levels help in maintaining the safety and palatability of your drinking water. By understanding TDS and actively managing it, you can ensure that your drinking water contributes positively to your health. Whether you aim to lower high TDS or add minerals to ultra-pure water, there’s a balance that can meet both health standards and personal preferences.
Conclusion
The acceptable range of TDS in drinking water varies depending on individual health guidelines and personal preference for taste, but keeping an eye on these measurements can help understand the overall mineral content and potential presence of harmful contaminants in our water supply. While 20 ppm TDS water is considered very pure, it’s essential to understand the balance between purity and the need for minerals in drinking water. Although such low TDS water can be good for health by providing uncontaminated hydration, it is also necessary to consider other sources for essential minerals typically found in water. Being informed about the quality of your drinking water and how it affects your health is paramount.
FAQs:
Q: What does a TDS level of 20 ppm mean?
A: A Total Dissolved Solids (TDS) level of 20 parts per million (ppm) indicates that the water contains a very low amount of dissolved substances, such as salts, minerals, and metals. This means the water is highly pure and may not have much taste due to the lack of minerals.
Q: Can water be too pure? Is there a downside to drinking water with TDS as low as 20 ppm?
A: Yes, water can be too pure for daily consumption. Water with a TDS level as low as 20 ppm may lack essential minerals that the body needs, such as calcium and magnesium. Drinking such pure water occasionally is not harmful, but for daily intake, a balanced mineral content is beneficial for health.
Q: How do I test the TDS level of my water at home?
A: To test the TDS level of your water at home, you can use a handheld TDS meter. These meters are simple to operate; you just need to turn on the meter, remove the protective cap, dip the sensor into the water, and read the TDS level from the digital display. Ensure the meter is calibrated and clean for accurate measurements.
Q: Should I aim for a specific TDS level for my health?
A: While there’s no universally agreed-upon “healthy” TDS level, water with TDS levels between 50 ppm and 300 ppm is generally considered to have a good balance of minerals without excess contaminants. The World Health Organization states that the palatability of water with a TDS level below 600 ppm is generally considered good. It is always best to aim for a level that falls within the guidelines of your local health authority.
Disclaimer: The information contained within this blog is intended for general informational and entertainment purposes only. It does not constitute professional advice and should not be relied upon as such. While we strive to provide accurate and up-to-date information, we make no guarantees about the completeness, reliability, or accuracy of this information.