If you are looking for the best water purifiers in India 2021, then this article is for you. Here we will give you a list of 9 best water purifier in the Indian market selected by our experts. We will discuss the advantages and disadvantages of each of them.
Along with this, we will provide you with a detailed buying guide in this article so that you can learn about the different water purification technologies and the advantages and disadvantages of them. We hope you’ll find answers to all water purifier related questions from this buying guide, and it will help you to choose the right water purifier for you.
Table of Contents
- Best Water Purifiers in India 2021
- 1. Kent – 11076 New Grand 8-Litres Wall-Mountable RO + UV+ UF + TDS
- 2. Eureka Forbes Aquasure from Aquaguard Delight 7-litres RO+UV+MTDS Water Purifier
- 3. Kent Ace Mineral 7-Liter RO+UV+UF Water Purifier
- 4. HUL Pureit Copper+ Mineral RO + UV + MF 8 litres Water Purifier
- 5. Kent Pearl 8-Litre Mineral RO+UV+UF Water Purifier
- 6. HUL Pureit Ultima Mineral RO + UV + MF 10 litres Water Purifier
- 7. Havells Max 8-liters RO+UV+Mineralizer Water Purifier
- 8. AO Smith Plastic Z8 Green RO Water Purifier with SCMT + HOT, 10L
- 9. Blue Star Aristo RO+UF AR3BLAM01 7-Litre Water Purifier
- 10. Livpure Glitz Silver RO+UF Mineralizer 7 Ltr RO Water Purifier
- Best Water Purifiers in India – Buying guide and tips
- Different sources of water
- Causes of water pollution
- Types of contamination in drinking water
- What is the TDS of water?
- Why do you need a water purifier?
- Water purification technology
- 1. RO (Reverse Osmosis) water purification
- 2. UV (Ultraviolet) water purification
- 3. UF (Ultra-filtration) water purification
- Understand the quality of the water in your locality
- What type of water purifier is ideal for you?
- Storage capacity of water purifier
- Water purifier brand
- After-sales service
- Best Water Purifiers in India – Frequently asked questions
Best Water Purifiers in India 2021
|Best Water Purifiers||Technology||Capacity||Warranty||View|
|Kent - 11076 New Grand 8-Litres RO + UV+ UF + TDS||RO+UV+UF+TDS||8 Litres||1 Year||View at Amazon|
|Eureka Forbes Aquasure Delight Water Purifier||RO+UV+MTDS||7 Litres||1 Year||View at Amazon|
|Kent Ace Mineral Water Purifier||RO+UV+UF+TDS Controller||7 Litres||1 Year||View at Amazon|
|HUL Pureit Copper+ Mineral RO Water Purifier||RO+UV+MF||8 Litres||1 Year||View at Amazon|
|Kent Pearl Mineral RO Water Purifier||RO+UV+UF+Mineral ROTM||8 Litres||1 Year||View at Amazon|
|HUL Pureit Ultima Mineral RO Water Purifier||RO+UV+MF+TDS Modulator||10 Litres||1 Year||View at Amazon|
|Havells Max RO Water Purifier||RO+UV+Mineralizer||8 Litres||1 Year||View at Amazon|
|AO Smith Z8 Green Water Purifier||RO+SCMT||10 Litres||1 Year||View at Amazon|
|Blue Star Aristo AR3BLAM01 Water Purifier||RO+UF+ATB||7 Litres||1 Year||View at Amazon|
|Livpure Glitz Silver RO Water Purifier||RO+UF+Mineralizer||7 Litres||1 Year||View at Amazon|
1. Kent – 11076 New Grand 8-Litres Wall-Mountable RO + UV+ UF + TDS
Our list of the best water purifiers in India starts with Kent – 11076 New Grand 8-Litres Wall-Mountable RO + UV+ UF + TDS water purifier.
Kent is a famous name in the water purifier industry of India. The brand has been providing quality water purifiers in the Indian market for a long time. Today Kent has established itself in the Indian market through advanced technology, equitable pricing and satisfactory after-sales service.
Kent – 11076 New Grand 8 Litre Mineral RO + UV + UF comes with multistage purification technology of RO + UV + UF. It can efficiently remove all contaminants from water, such as harmful chemicals, bacteria, viruses, etc.
Due to RO + UV + UF technology, it can purify any input water, such as municipal supply, tap water or groundwater. So, regardless of the quality of your input water, it always provides you with the safest drinking water.
RO purification is the only available technology that can remove dissolved toxic substances from drinking water. But there are two significant disadvantages of RO technology.
Firstly, when it removes harmful dissolved toxic substances, it also removes the necessary minerals from the water. Secondly, RO technology wastes a lot of water. Usually, it requires three litres of water to supply one litre of pure drinking water.
The product comes with the inbuilt TDS controller along with Kent’s RO TM technology to tackle the first problem. TDS controller restores essential natural minerals of the water. Thus, it always provides you with pure, safe, tasty drinking water.
It uses the “Save Water Technology” feature to deal with the second problem. With the help of this computer-controlled feature, it reduces water wastage by recovering pure drinking water from wastewater.
A water purifier is an appliance that has to be serviced periodically. Kent has more than 1500 service centres spread across the country. So you don’t have to worry about the after-sales service.
Also, this product comes with an eight-litre large storage tank and purification capacity of 20L / hr. So whatever the situation, you will always get enough pure drinking water.
2. Eureka Forbes Aquasure from Aquaguard Delight 7-litres RO+UV+MTDS Water Purifier
Eureka Forbes has been in the Indian market for over 35 years. From the very beginning, the brand has been supplying advanced water purifier to Indian consumers. Today Eureka Forbes is one of the most trusted brands in India’s water purifier industry.
Eureka Forbes Aquasure from Aquaguard Delight 7-litres RO+UV+MTDS is one of the best water purifiers in India. Let us look at some of the essential features of this purifier.
The product comes with RO + UV + MTDS technology. In this case, the RO filter first removes bacteria, viruses and harmful dissolved substances like arsenic, fluoride, lead, etc. from the water.
In the next stage, if any bacteria or virus crosses the RO filter, then UV technology kills them.
So you don’t need to worry about the type of contaminants in your input water. This water purifier always provides you with 100% pure, safe drinking water by removing all impurities.
Notably, due to the combined RO and UV technology, it is suitable for all type of input water such as municipal supplies, taps, borewell and tanker.
Another notable feature of this product is the MTDS technology. With the help of this technology, it restores the essential natural minerals that are removed from the water during RO purification. Therefore, you always get pure and tasty drinking water.
One of the most advanced features of this product is the Smart LED Indicators. Through different colour indicators, this purifier alerts you to various situations such as tank full, low incoming water pressure, no water supply, error with the machine, etc.
Eureka Forbes Aquasure from Aquaguard Delight 7-litres RO+UV+MTDS comes with a smart energy-saving function which automatically shut down once the storage tank is full. And furthermore, the smart plus feature protects the appliance during voltage fluctuation.
3. Kent Ace Mineral 7-Liter RO+UV+UF Water Purifier
Kent is the highest-selling water purifier brand in India. The brand offers various models with different advanced features. Though, the basic functionalities of almost all models are the same. Ace Mineral 7-Liter RO+UV+UF Water Purifier is an excellent product by Kent which comes in the list of best water purifiers in India.
Firstly, the product comes with a double purification technology of RO+UV+UF.
Both UV and UF technology destroy all types of bacteria and viruses. The RO technology eliminates heavy metals such as lead, arsenic, fluoride etc. Hence you always get safe drinking water.
Secondly, it can purify all types of water from different sources. No matter if you have municipal corporation water supply or groundwater supplies, Kent Ace Mineral RO+UV+UF can handle it efficiently.
Moreover, Ace Mineral RO+UV+UF works on Kent’s patented mineral RO technology along with TDS controller, which assure retaining of essential natural materials in purified water. Therefore you get pure and tasty water all the time.
Lastly, the appliance features a 7-litres storage tank made of food-grade plastic, which is safe and durable.
4. HUL Pureit Copper+ Mineral RO + UV + MF 8 litres Water Purifier
HUL’s new Pureit Copper + Mineral RO is aesthetically pleasing and is one of the most advanced RO purifiers out there. It infuses the health benefits of copper in RO purified water. It comes with the newest state-of-the-art technologies and features. Let’s look into these features in detail.
This high-end water purifier uses a 7 stage RO+UV+MF process which gets rid of all the contaminants in the water. Therefore, you no longer have to worry about pollutants like lead, mercury, arsenic, pesticides, viruses and bacteria.
The purified water is further cleaned with a charge of 99.8% pure copper real-time, so you get 100% safe drinking water. This is an improvement over the traditional practice, where the water has to be stored overnight for hours in a copper vessel.
The amount of copper that is infused within the RO-purified water is also regulated. It isn’t too much, and it isn’t too less. This infusion gives the water anti-microbial, anti-inflammatory, antioxidant and anti-carcinogenic properties.
You can drink either copper-charged RO water or regular RO water using the advanced Dual-Water dispenser.
Besides, the copper is also maintained by the purifier itself. It automatically cleans up the copper, so the water is always infused with fresh copper.
Furthermore, the presence of a double purity lock ensures that not a single drop of unsafe water comes in contact with you. So you don’t have to worry about consuming any of it by accident.
5. Kent Pearl 8-Litre Mineral RO+UV+UF Water Purifier
Kent is one of the most preferred water purifier brands of Indian consumers. The brand comes once again to the list of best water purifiers in India with Kent Pearl 8 little mineral RO + UV + UF water purifier.
No matter what kind of contaminants you have in your drinking water, you don’t have to worry anymore. This product comes with the latest RO + UV + UF Multistage purification technology. So, it can remove all kinds of impurities from your drinking water.
With the help of RO + UV + UF multi-stage purification technology, the product is capable of purifying any type of input water, such as municipal supply, tap water or groundwater. So no matter whatever the source of water, it always provides you with pure, safe drinking water.
We have already discussed that RO is the only technology that can remove dissolved toxic substances from water. But one of the significant problems with RO technology is that while removing the harmful contaminants, it also removes the essential minerals present in the water. As a result, the natural taste of water is lost, and it is not suitable for health.
But you don’t have to worry about this problem. Kent Pearl Mineral RO + UV + UF comes with Mineral RO technology, which restores essential minerals of the water. So, with this purifier, you always get pure and tasty drinking water.
A water purifier is an appliance that needs to be serviced periodically. Hence, the after-sales service is a vital issue. Kent has more than 1,500 service centres spread across the country. So, with Kent, you have no reason to worry about after-sales service.
Another essential feature of this product is the smart alarm system. With this computer-controlled system, it alerts you, when it’s time to replace the filter. Also, if for some reason, the UV lamp becomes inefficient, it alerts you through the UV fail alarm.
6. HUL Pureit Ultima Mineral RO + UV + MF 10 litres Water Purifier
Pureit is a trendy name in India’s water purifier market. According to our experts, the Pureit Ultima Mineral RO + UV + MF is one of the best water purifiers in India right now.
First, let’s talk about RO + UV + MF technology. With 7-stage advanced RO + UV + MF technology, this purifier can remove all types of contaminants such as lead, mercury, arsenic, pesticides, viruses, bacteria from your drinking water. Thus this purifier ensures that every drop of water you drink is 100% pure and safe.
For the same reason, this purifier is capable of purifying water from different sources. People depend on various sources for drinking water. Some use the water supplied by the municipality, while others use the tap water of the society. Whatever your source of drinking water, you don’t have to worry at all. With this purifier, you will always get pure, safe drinking water.
As you know, one of the limitations of the RO filter is that it cannot distinguish necessary minerals from contaminants. Therefore, it also removes essential minerals while removing harmful pollutants from the water. As a result, the natural taste of drinking water is lost. And it harms our health as well.
This water purifier comes with the TDS modulator to solve the problem. With the TDS modulator, it restores essential natural minerals and improves the taste of the water. As a result, you always get pure, safe and tasty drinking water.
One of the notable features of this product is its advanced digital display panel. With this electronic display panel, it shows you a lot of essential information like the quality of water, the life of Germkill Kit, etc.
The purity indicator can sense the quality of water upto 5000 times per second and shows you how pure your drinking water is. Also, the Advance Alert System alerts you at least 15 days before the Germkill Kit expire, so that you can take necessary steps in advance.
Lastly, the Pureit Ultima Mineral RO + UV + MF comes with a 10-litre large storage capacity. Therefore, you will always have enough pure drinking water.
7. Havells Max 8-liters RO+UV+Mineralizer Water Purifier
Hevells Max 7-liters RO+UV+Mineralizer Water Purifier is the next product of our list of best water purifiers in India.
Hevells is known as a manufacturer of superior quality electrical equipment. The brand entered the water purifier industry just a few years ago. But within a short time, Hevells has established itself as one of the best brands in India’s water purifier industry.
The product comes with 7 stage purification of RO + UV technology. So it can efficiently remove any contaminants such as harmful dissolved solids, viruses, bacteria from water.
Due to RO + UV technology, the product is suitable for all type of input water, such as municipal supply, tap water or groundwater.
RO is still the only technology available that can remove dissolved toxic substances from water. But one of the main problems with this technology is that it also removes the necessary natural minerals from the water. Which makes the water taste bad. And it’s not good for health either.
The product comes with Mineralizer to overcome this problem. Mineralizer refills the essential natural minerals of the water. Along with this, it also adjusts the ph value of the water. As a result, it maintains vital minerals and natural tests of water.
Another essential feature of Hevells Max RO+UV+Mineralizer water purifier is the intelligent iProtect function, which always monitors the water purification process and ensures an error-free water purification. So with this purifier, you can always be sure of pure, safe and tasty drinking water.
Also, the great advantage of this product is that as it comes with a large storage capacity of 7 litres. So, you always have enough pure drinking water.
8. AO Smith Plastic Z8 Green RO Water Purifier with SCMT + HOT, 10L
AO. Smith is an internationally renowned brand. The brand has a reputation throughout the world as a manufacturer of excellent quality water purifiers. Some of the best water purifiers in the world come from AO. Smith. Now, this world-class brand is available in India with some advanced water purifier models.
AO Smith Plastic Z8 Green RO Water Purifier with SCMT + HOT is undoubtedly one of the best water purifiers in India. Let us look at some of the essential features of this purifier.
The product comes with 8 stage purification of RO + SCMT technology. In this technology, 100% of the water passes through the RO filter. And this RO purified water is further purified by SCMT (silver charged membrane technology).
As a result, it efficiently removes all kinds of impurities such as bacteria, viruses and dissolved toxins from the water. So, regardless of the quality of input water, this purifier always provides you with 100% pure, safe drinking water.
Because of the advanced 7 stage purification of RO + SCMT technology, this purifier is suitable for any input water such as municipal supply or tap water.
We know that despite RO being the best technology for water purification, there are two significant problems. Firstly, it removes the essential natural minerals present in the water. As a result, the water does not have a natural taste. Secondly, It wastes a lot of water, which is not good for the environment.
But when it comes to AO Smith Plastic Z8 Green RO Water Purifier, you don’t have to worry about the above two issues.
Firstly, it comes with the Min-Tech (Mineraliser Technology) feature that restores essential natural minerals to the water. That is why the water retains its natural taste.
Secondly, with the latest advance recovery technology, it can save 2X more water than a typical RO purifier. So, in this case, the amount of wastewater is much less.
Another essential feature of this product is the hot water dispenser function. You can get hot water at 45 °C or 80 °C with just the press of a button.
9. Blue Star Aristo RO+UF AR3BLAM01 7-Litre Water Purifier
Bluestar is one of the best water purifier brands in India right now. The brand has long been supplying excellent quality water purifiers to the Indian market at a reasonable price. Aristo RO + UF 7-litre water purifier is a fantastic product from Bluestar, which is one of the best water purifiers in India at the moment.
To begin with, let’s talk about the double-layered RO + UF protection of this product. In this case, the RO filter removes dissolved impurities, arsenic, lead, fluoride, pesticides and microorganisms from the water. At the next stage, if any organism accidentally crosses the RO filter, UV radiation kills it.
That is to say, because of the combined functionality of RO and UF technology, your drinking water is unlikely to contain any harmful substances. So, with this water purifier, you always get pure, safe drinking water.
Not only that, due to this advanced technology, it can purify all kinds of input water. So, you can use this purifier for any source like municipal water, borewell or tap water.
One of the most significant features of this product is the Aqua taste booster (ATB). It controls the ph level of your drinking water and maintains the natural taste of the water. This feature ensures that your drinking water is not only pure but also tasty and healthy.
Another essential feature of this product is the Smart Alarm Indicators. With this feature, this product alerts you to various conditions such as Purification-on, tank-full, low water pressure etc. This allows you to know about the different status of the purifier and take action accordingly.
10. Livpure Glitz Silver RO+UF Mineralizer 7 Ltr RO Water Purifier
Livpure is a newcomer to India’s water purifier market. But within a short time, the brand has established itself as one of the best water purifier brands in India. Livpure has gained the confidence of Indian consumers within a short period by bringing some outstanding water purifiers at a reasonable price.
Livpure Glitz RO+UF Mineralizer 7 Ltr RO Water Purifier is one such product, which is undoubtedly one of the best water purifiers in India at this time. Let us briefly discuss the key features of this product.
The product comes with Advanced 6-Stage purification of RO + UF technology. With the help of this advanced technology, it can efficiently eliminate all types of contaminants such as viruses, bacteria, pesticides, arsenic, fluoride, etc. from the water.
So, It doesn’t matter what kind of Impurities you have in the water. With this purifier, you will always get pure and safe drinking water.
Also, due to the advanced 7-Stage purification of RO + UF technology, it is suitable for all types of input water. So municipal supplies, tap water or borewell, whatever your source of water, it provides you with 100% pure, safe drinking water.
Besides, the Mineralizer function refills the natural minerals in the water that were removed by the RO purification method. That maintains the natural taste of water and makes it suitable for human drinking. So this purifier always provides you with pure, tasty and safe drinking water.
Best Water Purifiers in India – Buying guide and tips
You can’t survive without water. You must have access to pure drinking water to stay healthy. Now, in India, water pollution is alarming. Hence, a water purifier is necessary for every Indian household.
Right now, many water purifier brands and their numerous models are available in the Indian market. Everyone claims to be the best. Now the question is which one is right for you.
Do you buy new water purifier every year? Of course not. As a buyer, you would expect that after purchasing a water purifier, it will provide you with continuous service over the next several years.
|RO Purifier||UV Purifier||UF Purifier|
|Kill Bacteria and Viruses|
|Remove dead bodies of Bacteria and Viruses|
|Remove dissolved Toxic Elements|
|Works with Dirty Turbid Water|
Different sources of water
Life on earth began with water, and water nourishes life. Life without water is not possible. About 70% of the human body is made up of water. Also, water is present in all plants and animals. That is why water is considered as one of the most essential and valuable resources on earth. Water sources are mainly of two types, namely Surface Water and Groundwater.
What is Surface Water? In short, the water present above the ground is considered as Surface Water. That is, the water contained in the oceans, rivers, lakes, streams and reservoirs is called surface water. The primary source of Surface Water is rain and continuous melting snow in the mountains.
On the other hand, the water present under the ground is called groundwater. That can present in the soil and between rocks under the ground. Groundwater is usually the primary source of water for most of the world’s population.
It is essential to mention here that only 3% of the water present on the earth is freshwater, which is suitable for human consumption. There are countries in the world where groundwater is not accessible. They use seawater to meet their water needs. In this case, salt and other impurities are removed from the seawater by Desalination. And that makes the water suitable for human consumption. From that point, we Indians are fortunate that there is still enough groundwater available in our country.
Causes of water pollution
Water is one of the world’s most valuable resources. We all know how vital water is to our lives. In future, the lack of pure drinking water could endanger our existence on earth. Unfortunately, even knowing this, we are polluting water every day. Water pollution is one of the most severe problems in the world right now. And the problem is increasing day by day worldwide. Many intellectuals even say that the Third World War is about to happen because of drinking water.
Let us now briefly understand why water pollution occurs. Water pollution occurs when various harmful toxins enter and dissolve in water sources such as rivers, lakes, oceans, etc. As a result, all these water sources are contaminated with toxic substances.
But the matter is not confined to Surface Water alone. This contaminated water seeps through the soil and then enters the groundwater. Thus it causes groundwater pollution. And we use that contaminated water for a variety of daily needs, including drinking.
It is important to remember that all of these toxins cause serious harm to our health. We may suffer severe illness because of drinking contaminated water. Therefore, it is essential to purify the water before drinking.
Recommended Reading: A Brief Overview of Groundwater Pollution in India
Types of contamination in drinking water
Water can be contaminated by various types of pollutants, such as organic, inorganic, radioactive, etc. Typically, the amount of pollutants in the mountains and mountainous areas is negligible. That is why water pollution in those places is very low. On the other hand, the quantity of pollutants is very high in the cities and rural areas, so the water pollution in these places is also very high.
Recommended Reading: Arsenic Poisoning in Water – Sources, Effects & Prevention
The municipalities disinfect the water with chlorine before being supplied. But,
it often goes far beyond the prescribed levels. That’s why you sometimes smell the chlorine in municipal water. It is important to remember that the presence of excess chlorine in drinking water is also detrimental to human health.
We have discussed above that drinking water can be polluted by various types of contaminants such as harmful germs, toxic chemicals etc. There are different types of water purifier for different kinds of pollution.
Before buying a water filter, you should know what kind of contaminants are present in your drinking water. If your drinking water is contaminated by more than one of the pollutants described above, you should buy an RO + UV + UF water purifier.
Recommended Reading: Water Pollution Causes, Effects & Prevention
What is the TDS of water?
TDS refers to the total dissolved solids present in water. In other words, TDS represents the amount of total dissolved solids present in the water.
These dissolved solids are basically some inorganic salts and small amounts of organic compounds. They appear in the water, both for natural causes and for human activities such as urban development and farming. Generally, sodium, potassium, magnesium and calcium are present in the water as natural minerals.
Let’s understand the acceptable TDS values of drinking water from the points below.
|Less than 300||Excellent|
|300 - 500||Good - Acceptable for human consumption|
|500 - 900||Not good - Should not be consumed.|
|900 - 1200||Poor - Unfit for human consumption.|
Now the question is, how do you measure the amount of TDS in your drinking water? It’s straightforward. All you need is a TDS meter. You can easily measure the amount of TDS in your drinking water using a TDS meter. Now you can buy a good quality TDS meter at a low price (below Rs 500) from Amazon. And you can use it for years. Along with this, you should have an idea about the safe drinking water guidelines in India.
Recommended Reading: How to check TDS of water
At present, millions of Indians drink water that contains TDS value over 900. That is not safe for our health at all.
In this situation, you should never drink water without purifying. Now, by installing a good RO water purifier in your home, you can easily remove all of these toxins from your drinking water.
Why do you need a water purifier?
As per the reports stated above, Now, In India, the state of the water pollution is alarming. Therefore, every Indian household should adopt a water purification system.
Water purification technology
Currently, we have mainly three types of water purification technology available. These are RO (Reverse Osmosis), UV (Ultra-Violet) and UF (Ultra-filtration), respectively. The working principles of these technologies are different, and each of them has its advantages and disadvantages. Below we will try to briefly give you an idea of how each of these technologies works and their benefits.
1. RO (Reverse Osmosis) water purification
Presently, RO (Reverse Osmosis) is the most advanced and effective water purification technology. It can efficiently remove harmful contaminants such as chemicals, bacteria, and viruses from your drinking water.
Although RO is the most trusted and reliable water purification system worldwide, it has some limitations.
First of all, it is essential to remember that RO purifier needs electricity to function. Also, more water is required for the RO purifier to work. The reason for this is that, in this method wastage of water is much higher than other purification systems.
Typically, the RO water purifier wastes three litres of water to supply one litre of pure water. In this case, 25% of the total input water comes out as pure water, and the remaining 75% goes out as wastewater, which cannot be used for drinking. Of course, you can use this wastewater for gardening or cleaning the floors of your home.
RO purification process
Let’s now see how RO technology works. There are four stages to the RO purification process, which are Pre-Filter, Carbon Filter, RO Filter and Post Carbon Filter, respectively. RO technology uses these different types of filters to purify water.
Pre-Filter or Sediment Filter
The Reverse Osmosis purification process begins with the Pre-Filter Method. This process removes large particles present in the water. As a result, dust, sand or other visible impurities are removed from the water. Also, this process reduces the amount of chlorine present in the water.
The next stage of pre-filter is the carbon filter. At this stage, the water coming out of the pre-filter process passes through the carbon filter. This method eliminates any organic compounds and odours present in the water.
RO filtration is the most crucial part of this entire purification process. The RO purification process begins as the next stage of carbon filter purification. In this case, the water coming out of the carbon filter passes through the RO membrane.
RO membrane is a plastic filter. It has tiny holes in it that allow only water molecules to pass through it. The molecular size of other pollutants is more substantial than these pores. So, they cannot cross the RO membrane. Therefore, dissolved harmful substances such as arsenic, fluoride, radium, barium, cadmium, cyst are removed from the water. This process also reduces the amount of total dissolved solids (TDS) of water.
Post Carbon Filter
The last step in this whole purification process is post-carbon filter or post filter. In this process, the water coming out of the RO filter crosses through a second carbon filter.
Though at this stage, the presence of contaminants in the water is unlikely. However, if a contaminant somehow crosses the RO filter, it is removed from the water by this process. Moreover, if any odour is left in the water, it will also be removed at this step.
Now the water coming out of the post-carbon filter is entirely purified and suitable for drinking.
In India, brands like Kent, Eureka Forbes, Pureit and Havells now produce advanced RO water purifiers. These are efficient and budget-friendly at the same time. You should choose an RO purifier that is efficient, budget-friendly and easy to use.
Advantages and disadvantages of RO water purification
Recommended Reading: RO (Reverse Osmosis) Water Purifiers – Pros and Cons
2. UV (Ultraviolet) water purification
UV (Ultraviolet) purification is an effective method that kills germs present in the water by ultraviolet radiation. In this case, an ultraviolet bulb is used that produces ultraviolet rays. And when passing through this ray, almost all the bacteria and viruses present in the water die.
Like the RO purification system, UV water filters also require electricity to function. It should be noted here that the process is entirely chemical-free.
UV purification process
Ultraviolet purification is a powerful and highly effective method of disinfecting bacteria and viruses from water.
In this technology, powerful ultraviolet rays are produced using a UV bulb. And water is passed through the ultraviolet rays. As a result, when the germs present in the water come in contact with UV rays, it attacks the genetic core of those germs (DNA) and kills them. This process can destroy up to 99.99% of the pathogens present in the water.
It is important to note here that ultraviolet radiation is a very effective method for destroying germs that cause waterborne diseases. But this technology has a significant limitation. It cannot remove soluble harmful substances like pesticides, lead, arsenic, fluoride from the water. Also, with this method, it is not possible to clean the dirty water.
Advantages and disadvantages of UV water purification
Recommended Reading: UV (Ultra-Violet) Water Purifiers – Pros and Cons
3. UF (Ultra-filtration) water purification
UF (ultra-filtration) technology is an effective water purification method that can remove harmful microorganisms from water. It is also capable of purifying mud and dirty water.
The advantage of this method is that it does not require electricity to work. And no chemicals are used in this case. In this method, water can be purified at a very low cost. That is why it is a widely used method of water purification.
But even with so many benefits, this technology has a significant disadvantage. This method cannot remove dissolved harmful substances like pesticides, lead, fluoride and arsenic from water.
UF purification process
Like the RO purifier, the UF water purifier also uses a membrane to remove contaminants from the water. The sheet contains numerous tiny pores that are 0.01 microns in size.
When the water is passed through this fibre membrane, these 0.01 micron-sized pores allow water molecules to pass through. But germs and dirt present in the water cannot pass through these tiny holes. So these are filtered out of water.
You are right, and this method is exactly like the RO purification procedure. But there is a difference between these two approaches. In the case of UF filter, the size of holes is larger than the RO membrane pores. So even though it removes germs or dirt from water, it can not eliminate soluble chemicals such as pesticides, arsenic, lead, etc. These toxins can easily pass through these pores.
Advantages and disadvantages of UF water purification
Recommended Reading: UF (Ultra-Filtration) Water Purifier – Pros and Cons
Understand the quality of the water in your locality
One of the most critical factors you should consider is the quality of the water in your locality.
There are mainly two types of water Soft water and Hard water. Generally, Water comes from a lake or river is soft water. On the other hand, underground water is hard water. Underground water contains a high amount of total dissolved solids (TDS).
Follow the points below to understand the situation and the right solution to the problem.
What type of water purifier is ideal for you?
At this point, you have a clear idea about different types of water purification technology, the fundamental difference between different kinds of water purifiers and various types of impurities in drinking water.
Now the question is, what type of water purifier is ideal for your home?
1. First of all, you should conduct a TDS test of the water at your home.
Let’s have a look at the table below to understand the impurities and the ideal water purifier for that situation.
|TDS Value||Turbid water||Bacteria||Ideal purifier|
|Below 300 PPM||UV|
|Below 300 PPM||UV+UF |
|Over 300 ppm||RO water Purifier|
+ TDS controller
|Over 300 ppm||RO+UV+UF purifier |
+ TDS controller
2. If there is any industry nearby, you should also perform a chemical test of the water to know the level of chemical impurities.
3. If you have any confusion, you should always select the best water purifiers with RO+ UV+UF.
Storage capacity of water purifier
Storage capacity is also a crucial factor to consider. Especially when you are living in a city with frequent power cuts, then big storage capacity will come in handy.
During an extended power cut, large storage capacity will make sure of continuous purified water supply.
Water purifier brand
You should consider a brand which has an excellent reputation for producing quality water purifiers. Consider choosing a brand which is trusted for providing efficient water purifiers.
You should also consider your budget for water purifier. The price and maintenance costs both will be high if you want to use a water purifier with all the features and facilities. But keep in mind that it is not necessary to have every feature. First of all, you should think about your requirements and select a model based on that. That will help you to lower the overall costs.
However, now in India, several top brands offer models with all kinds of advanced features in affordable price and low maintenance costs.
After-sales service is another essential factor to consider. When you face any technical difficulties in the product, poor after-sales service will cause a lot of problems.
In India, excellent after-sales service depends on location and brand. As an example, when one particular brand has inadequate after-sales services in one place. At the same time, another brand provides excellent after-sales service for that specific area.
Therefore you should select a brand which offers good quality after-sales services in your locality.
Best Water Purifiers in India – Frequently asked questions
1. Which water purifier brand provides the best after-sales service?
The water purifier is a type of product that requires periodic maintenance. So you will often need technical help. Therefore,
it would help if you chose a brand that gives you reliable after-sales service, without being influenced by the sales representative or various online offers.
After-sales service depends mostly on the availability of service centre in your area, type of service required, availability of the parts, and so on.
Therefore, you need to choose a brand that offers excellent after-sales service in your area. The best way to find this is to do a quick Google search. You can also visit the review section on e-commerce websites where customers share their views about after-sales service.
From our experience, we have seen that in India Kent, Eureka Forbes and Pureit provide satisfactory after-sales service.
2. What is the cost of annual maintenance (AMC) of RO water purifier?
Now, almost all top water purifier brands in India offer annual maintenance service. The cost depends on the brand and the type of model.
Generally, in India, water purifier AMC providers charge between Rs. 3000 to Rs.6000 per annum, which includes periodic replacement of RO membrane, UV and UF filters, activated carbon filters, sediment filters etc.
3. What is TDS controller?
TDS controller regulates the total dissolved solids of the output water of RO water purifier. Generally, RO water purifier lowers 90% TDS of input water. For instance, if input water has a TDS value of 900, then TDS value of the purified output water will be 90.
Firstly, water with very lower TDS value doesn’t taste good. Secondly, it essential to have some minerals and salts in drinking water for your health.
Working principle of TDS controller is straightforward. It divides the input water flow into two parts, one part goes through the RO membrane, and another part goes directly through UF and UV chamber. Hence, the TDS value of the second part remains unchanged. And finally, these two types of water mixed up and come out as output water. As a result, output water contents acceptable TDS value. That is the job of a TDS controller.
In this article, we look at the best water purifier models in India 2021. We discussed various water purification technologies. Along with that, we talked about some essential things you should keep in mind when buying a water purifier.
If you have any specific questions, let us know in the comments section below. We will reply as soon as possible.