6 Things to Consider Before Buying A Water Purifier in India

If you are looking to buy a water purifier for your home, then it is important to know what type of water purifier will be better for you. You also need to know the important features of water purifiers and then select the right one for you. Actually, they come with different technologies and features.

Here we have a detailed buying guide to help you buy the right water purifier for your home from the Indian market. This article has all the important features that you need to know before you buy a water purifier.

See Also: Best water purifier in India

6 Things to Know Before Buying A Water Purifier in India

Types Of Water Purifiers

In the Indian market, there are different types of water purifiers available. They usually use different water filtration methods depending on which water purifiers are classified. This way, water purifiers are available in three main categories. Before you buy a water purifier for your home, you need to take the right decision depending on your requirements.

RO Water Purifier

Ro water purifiers are very popular in India. This process of water purification is known as the reverse osmosis process. In this water purification process, water is processed in a semipermeable membrane. Then the contaminants from the water are separated and drained.

Freshwater is collected in a water tank. Reverse osmosis water purifier systems are very useful for water with high TDS levels. RO water purifiers require regular maintenance. These water purifiers are great for purifying hard water. They have excellent storage capacity.

The down point of RO water purifiers is that they can’t kill bacteria and germs. These water purifiers can waste water during the purification process. Another disadvantage of RO water purifiers is that they can change the taste of water and remove some minerals from water.

V-Guard Zenora RO+UF+MB 7 Litre Water Purifier

v guard ro water purifier

UV Water Purifier

Unlike RO purifiers, UV water purifiers use UV rays to filter water. In this water purification process, high intensity of UV lamp is used to remove the microorganisms from water. However, these water purifiers are not that powerful that they can remove the dissolved impurities and chemicals in the water.

Therefore, these water purifiers are recommended for water with low TDS levels. UV water purifiers are the best choice for purifying water with bacteria and viruses. The main advantage of using a UV water purifier is that it doesn’t use chemicals throughout the entire process.

These machines require low service and use energy. UV water purifiers also don’t waste a lot of water. But these water filters are slightly expensive. The next disadvantage of UV water purifiers is that they are not able to remove heavy metals and salts from water. They come with a double-layer purification system for excellent performance.   

AO Smith X2 UV+ UF 5 L Water Purifier

ao smith water purifier

Components Of A UV Filters

The Reactor Chamber

This part is very essential for UV purification because it contains the main UV LED lamp that removes all water germs. It is also essential for controlling the flow of water. This is mainly made of stainless steel and comes in various sizes according to consumer needs.

The UV Lamp

The UV lamp in the water filter contains mercury that is necessary to produce the wavelength of the UV spectrum. However, it is important to note that neither the UV rays nor the mercury can harm human health, but it is effective for eradicating germs.

The Quartz Sleeve

The UV lamp can get damaged by the flow of water. That’s where the quartz sleeve helps. It is a long cylindrical-shaped tube made up of quartz glass. So, it is also an important component to use the filter efficiently.

The Controller Unit

The controller unit is responsible for handling the intensity of the UV rays by adjusting the voltage as required. It also contains other features like error detection, low UV warning, UV timers, etc., depending on the system. It also helps to manage other components in the system.

Gravity Based Water Purifiers

This is another type of water purifier that is great for water with low TDS levels. This water purifier can remove dust, bacteria, and chlorine from the water. But it can’t remove dissolved solids and heavy metals from water. A Gravity-based water purifier doesn’t require electricity for operation.

These machines follow a simple process of water filtration and efficiently produce clean water. These water purifiers require low maintenance and are available at a low cost. They are available in different sizes so that you can choose the one according to your needs. The disadvantage of gravity-based water purifiers is that they take more time to purify water.

KENT Gold 20-Litres UF technology based Gravity Water Purifier

kent water purifier

Brand Of Water Purifiers

Choosing a water purifier from a reputed brand is the key. In the Indian market, water purifiers are available from different brands. Therefore, you should do proper research and buy the best water purifier from a top brand.

Eureka Forbes, Kent, Pureit, Livpure, Aquaguard, Aquafresh, Whirlpool, LG, And Unilever are some of the top brands in the Indian market for buying a water purifier. So, you can consider these brands when buying a water purifier for your home.

Quality Of Water

When buying the best water purifier for your home, you should first consider the quality of water you want to purify. To know this, you will need to know the source of water. Water can have several impurities such as bacteria, viruses, chemicals, harmful pollutants, and hardness.

Depending on the source of water, it can have more or fewer impurities. Further, the TDS levels of water define whether it is soft or hard water. TDS level of water is measured in PPM, which is nothing but the degree of hardness of the water. Once you know the quality of water, you can easily decide which water purifier is right for your use.

V-Guard Zenora RO+UF+MB 7 Litre Water Purifier With 7 Stage Purification

Storage Tank Capacity

Water purifiers come with a storage tank that helps store purified water. But different water purifiers come with different tank capacities. It is very important to consider your requirements and buy the one that suits your needs.

Generally, it is not a good idea to buy a water purifier that has a big storage tank. It will be heavier and require more space for storage. Therefore, you can consider buying a water purifier that has 7 to 10 liter of storage capacity.

After-Sale Service

This is another important thing to take into consideration. Actually, water purifiers require proper maintenance to perform well. Therefore, you should consider buying a water purifier that comes with good after-sale service. This way, you can get pure water every day. In general, water purifiers of reputed brands come with good after-sale service.

Installation Of the Water Purifier

Before buying a water purifier for your use, you need to check its installation procedure, dimensions, and other requirements. For example, a RO water purifier requires electricity and continuous flow of water. This way, you should consider the requirements and select the best water purifier for your use.


It is essential for every homeowner to buy the best water purifier from the Indian market. But you need to do proper research before you buy any water purifier from the market. In this context, this article will be helpful for you. You should consider the points described above and choose the best water purifier for your use.   

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