
A Comprehensive Guide On How To Calculate TDS Level In The Water
PUBLISHED ON: 23-May-2025
Water quality plays a crucial role in maintaining health and well-being. One of the key indicators of water quality is the Total Dissolved Solids (TDS) level, which measures the concentration of dissolved substances in water, including minerals, salts, and organic matter. Monitoring TDS levels is essential to determine whether water is safe for consumption and to choose the right purification water methods.
In this comprehensive guide, we will explain how to check water purity by calculating TDS levels and how water purification systems, such as Aquaguard water purifiers, help maintain optimal water quality.
What is TDS in Water?
TDS stands for Total Dissolved Solids, which includes all organic and inorganic substances dissolved in water. These solids come from natural sources, human activities, and industrial waste. TDS is primarily made up of minerals such as calcium, magnesium, potassium, sodium, and chlorides, as well as contaminants like heavy metals, pesticides, and chemicals.
While some level of dissolved solids is essential for taste and health benefits, excessive TDS can affect water quality, making it taste salty, bitter, or metallic. Hence, monitoring TDS levels helps determine whether the purification of water is necessary.
Why is TDS Measurement Important?
Checking TDS levels helps:
- Assess Water Purity: High TDS levels indicate contamination, requiring purification of water to make it safe for drinking.
- Improve Taste and Odour: Water with balanced TDS levels tastes better and is free from unwanted odours.
- Protect Household Appliances: Hard water with high TDS causes scaling in kettles, water heaters, and pipelines.
- Choose the Right Water Purifier: Understanding TDS levels helps select the best purification method, such as RO, UV, or UF purification of water.
How to Calculate TDS Level in Water
There are several methods to measure TDS levels in water. Let’s explore the most effective ways:
1. Using a Digital TDS Meter (Most Accurate Method)
A digital TDS meter is the easiest and most accurate way to check TDS levels in water. This handheld device measures water conductivity to estimate TDS concentration.
Steps to Measure TDS with a Digital Meter:
- Turn on the TDS Meter and dip its sensor into the water sample.
- Ensure the probe is submerged but not touching the container walls.
- Wait for the reading to stabilise, which usually takes a few seconds.
- Record the TDS value displayed on the meter. The measurement is given in parts per million (ppm) or milligrams per liter (mg/L).
- Compare the reading with the ideal TDS levels for drinking water.
TDS Level (ppm) | Water Quality |
50-150 ppm | Excellent (Ideal for drinking) |
150-300 ppm | Good (Safe for drinking) |
300-500 ppm | Fair (May require purification of water) |
500-1000 ppm | Poor (Needs purification through RO) |
Above 1000 ppm | Unsafe (Not recommended for consumption) |
How do Water Purifiers Help Maintain Optimal TDS Levels?
TDS levels determine the type of purification of water required. Aquaguard water purifiers use advanced technologies to maintain safe and healthy TDS levels in drinking water.
1. RO (Reverse Osmosis) Purification
- Ideal for water with TDS above 300 ppm.
- Uses a semi-permeable membrane to remove excess minerals, heavy metals, and salts.
- Provides clean, fresh-tasting water.
2. UV (Ultraviolet) Purification
- Suitable for low TDS water (below 200 ppm).
- Kills bacteria, viruses, and microorganisms.
- Retains essential minerals.
3. UF (Ultrafiltration) Purification
- Best for low TDS water with visible impurities.
- Removes dirt and sediments while keeping beneficial minerals.
If you’re wondering how to use an Aquaguard water purifier, simply select a model based on your water’s TDS level, install it, and follow maintenance guidelines for optimal performance.
How to Maintain Water Purity at Home?
- Clean and Maintain Your Purifier: Follow the manufacturer’s guidelines for the purification of water systems.
- Use Proper Storage Containers: Store purified water in food-grade containers to avoid contamination.
- Choose the Right Water Source: If TDS levels are consistently high, consider switching water sources or upgrading your purifier.
Aquaguard offers advanced water purifiers that effectively reduce TDS levels while retaining essential minerals. Here are two top models:
1. Aquaguard Glory RO+UV+MTDS+Alkaline+SS Water Purifier
This high-performance purifier features RO and UV purification, ensuring the removal of excess TDS, heavy metals, and microbial contaminants. The MTDS (Mineral Guard Technology) helps retain essential minerals, while the alkaline technology enhances water pH for better taste and health benefits. The stainless-steel tank ensures safe and hygienic water storage.
2. Aquaguard Marvel NXT RO+UV+MTDS+Alkaline+SS Water Purifier
Designed for superior purification, this model uses RO filtration to remove high TDS, ensuring clean and safe drinking water. The UV technology eliminates bacteria and viruses, while MTDS restores necessary minerals. It also includes alkaline technology to improve water quality and a stainless steel tank for long-lasting durability.
Both purifiers are ideal for treating high-TDS water, delivering safe, sweet-tasting, and mineral-balanced drinking water.
Conclusion
Knowing how to check water purity by calculating TDS levels is essential for maintaining safe and clean drinking water. Whether using a TDS meter or another method, regular monitoring helps ensure water safety.
For effective purification of water, choosing the right Aquaguard water purifier is key. RO purifiers reduce high TDS, while UV and UF systems maintain the purity of low TDS water. If you’re unsure how to use the Aquaguard water purifier, follow the user manual and seek professional advice when needed.
By keeping track of TDS levels and using an appropriate purification system, you can enjoy safe, healthy, and sweet-tasting water every day.