Calculate TDS in Water

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What is TDS ?

We keep reading or hearing about TDS. But very few of us are aware about its meaning or even the importance of the TDS level for drinking water. TDS or Total Dissolved Solids are basically the concentration of the impurities like dissolved particles or solids in water. It majorly comprises of inorganic salts like calcium, magnesium, potassium and, sodium, along with some amount of organic matter like nitrates, bicarbonates, chlorides and sulphates.

TDS levels affect the quality of water. Higher the TDS level, the more difficult and harmful it is to consume. The particles mixed in the water would not be favourable for your body and may lead to health issues. While it is difficult to completely remove TDS in water, water purifiers reduce the level of TDS to make it consumable.

Why is it important to measure the TDS in water?

Calculating the TDS of drinking water is very important to check the quality of the water you consume or use for different purposes.

Taste – The level of TDS in water directly affects the taste of the water. High levels of TDS would mean that the water would taste bitter or salty, depending on the dissolved solids in the water. It will also affect the taste of the food you cook using the impure water.

Health – With high level of TDS in the water, it becomes unsafe to consume as some substances in the water may be hazardous to the health.

Filter Life – The filter in the water purifier will be more affected with high levels of TDS.

What are TDS levels in various sources of water?

TDS levels vary as per your source of the water. Usually, TDS levels in borewell water are found to be higher than those compared to the water you get from municipality or tanker water. They generally range between 50 to 2000 ppm. While not all of these are harmful for consumption, have put out the details of the consumable levels of TDS.

What is the recommended level of TDS in drinking water?

TDS is calculated in ppm (parts per million). A higher level of TDS is deemed unfit for your health. Here are the various levels of TDS along with the ideal TDS of drinking water.

TDS Level Chart for Drinking Water

TDS in Water (measured in PPM) Suitability for Drinking Water
Between 50-150 Excellent for drinking
150-250 Good
250-300 Fair
300-500 Poor, not good for drinking
Above 1200 Unacceptable

How to Measure TDS in water?

TDS in water can be easily calculated with the help of a TDS Calculator. A TDS Calculator is the easiest way to check the TDS in any kind of water.

Is low TDS water harmful to the human body?

Low levels of TDS in drinking water are generally not considered harmful for consumption by the human body. Because low TDS water does not contain excess quantities of inorganic compounds like salts, metals, minerals, ions etc., which are unsafe for human consumption.

As per the recommendations of World Health Organization (WHO), the ideal levels of TDS in drinking water can be up to 300 ppm. Beyond this limit, the water will become less palatable and bitter in taste.

Water with high TDS levels will be saline, have an unpleasant smell and not taste good. So you will also be able to easily distinguish from the quality of water coming to your house whether it's safe for drinking.

What are the ways to reduce or remove TDS in water?

There are 2 main methods of eliminating high levels of TDS from the water:

Reverse Osmosis: Reverse osmosis (RO) is one of the most efficient ways of reducing the high levels of TDS in drinking water and making it safe and pure for drinking. The process of RO technique makes use of a semipermeable membrane that lets the water molecules pass through and holds back the dissolved solids.

Distillation: In this method, water is boiled to create water vapours. The water vapours condense back into liquid form at a lower and cooler temperature. As a result of this, the dissolved salts remain in the boiling solution.

Livpure Smart offers advanced water purifiers to purify high TDS water supply to provide safe and healthy drinking water with ideal TDS levels.

Frequently Asked Questions About TDS in Water

1. What is TDS in water?

TDS (Total Dissolved Salts) means the level of dissolved salts present in the water. They comprise of organic matter as well as inorganic salts.

2. How much TDS water is safe for drinking?

Ideally, the TDS levels between 50-150 are considered the best for drinking.

3. Is low TDS level bad for health?

A TDS level of more than 1200 is considered to be unsafe for drinking. Anything below that should be purified and then consumed.

4. How much TDS in water is good for health?

Water with TDS levels below 300 ppm is considered safe and suitable for drinking. However, according to WHO, the acceptable normal range of TDS in water is between 300 to 900 ppm; beyond that, it is alarmingly unsafe and unfit for consumption. So it is recommended to get RO water purifiers installed in your homes to give yourself and your families healthy and pure drinking water.

5. Is TDS in water harmful?

TDS consists of organic and inorganic compounds like minerals, salts, calcium, magnesium, etc., which, if consumed in balanced quantities, are good for the body and overall health of a person. Water that lacks the necessary minerals or has an excess of it both are not good for the person's well-being. With the help of RO water purifiers, get balanced TDS levels in your drinking water.

6. Does boiling water reduce TDS?

Total dissolved solids (TDS) actually rise when water is boiled because the evaporation process leaves behind more dissolved minerals and salts. Boiling kills germs and gets rid of some chemical pollutants, but it has no effect on total dissolved solids (TDS). Reverse osmosis is one of the effective filtration techniques that can be used to reduce TDS. But it is to be noted that the RO technique does not remove all the TDS; instead, it brings the TDS levels between an ideal range so that drinking water becomes consumable for us.

7. Is RO water good for health?

There are no health concerns associated with drinking RO (Reverse Osmosis) water. It does a great job of filtering out harmful substances like minerals, chemicals, and pollutants so that the water you drink is safe to consume. Using a semipermeable membrane, it removes contaminants such as salts and minerals. In this process, only water molecules are allowed to flow through the membrane, while any impurities are left behind. So, you get drinking water with balanced TDS levels that is fit and pure to be consumed by everyone.

8. How can I reduce TDS in water naturally?

RO Purification is the best and most cost-effective method to reduce the TDS levels in water. As you will only require a working water purifier for that. In the other processes, like distillation and deionisation, you will have to do a proper setup and require special equipment that is mostly found in chemical laboratories. Moreover, these processes are very time, money and energy-consuming.
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