Being the vital resource for all lives, access to pure water is very important. The number of contaminants like Chlorine, Fluorine, microbes, etc. in water are increasing day by day, so having a water purifier in your house has become a necessity today. Wherever your water may come from, it is crucial to consider the TDS (Total Dissolved Salts) present in the incoming water. TDS is measured in parts per million (ppm). The main constituents of TDS are calcium, nitrates, phosphates, sodium, potassium, chlorine and iron. The TDS level mainly influences the choice of your water filter.

A wide range of water purifiers with different technologies are available in the market and it is important to choose the right water purification system based on the source of the drinking water. 

Different types of water purifying technologies

UF (Ultra Filtration) Technology - Gravity-based Water Purifier

• Water purification without electricity
• The only type of water purifier which is certified to remove cysts
• Does not remove the dissolved impurities
• Does not remove viruses
• Disinfection recommended
• Suitable for use with water having low TDS.

UV (Ultraviolet) Technology

• Does not alter water chemically
• Sterilized microbes are not removed from the water
• Does not remove dissolved organics, inorganics or particles
• Fast disinfection procedure
• UV radiations penetrate the microbes' outer cell membrane, pass through the cell body and disrupt its DNA, preventing reproduction.

Activated Carbon Water Purification Technology

• Activated carbon water purifier comprises of charcoal granules, absorbs the pesticides as well as herbicides.
• It works without electricity.
• Activated carbon filter works by removing the harmful chemicals such as chlorine present in water when passing through the carbon granules.
• This improves the taste of water and removes any bad odor.

 RO (Reverse Osmosis) Technology

• Most convenient and efficient method
• Effective when TDS rating of water is between 200 and 2000
• Reduces the hardness of water which is caused by an excess of calcium & magnesium salts
• Purifies the water from contamination caused by fluoride and other harmful chemicals like heavy metals, such as arsenic, lead, mercury, etc.
• It works by squeezing the incoming water through a semi-permeable membrane, which is rated at 0.0001 microns.
• This is the only technology capable of desalinating seawater, making it drinkable.

EAT Technology (Electro Adsorption Technology)

• EAT has five advanced stages of water purification which are as follows:
• First Stage - External Prefilter removes solid particles like sand, silica, silt, dirt, and dust present in water and enhances the life of the filter
• Second Stage - Mechanical Filter removes other suspended solids through a sediment mesh
• Third Stage - Electro Adhesion Filter eliminates the impurities which carry a negative charge, removes the disease-causing germs such as bacteria, virus, and cysts.
• Fourth Stage - Ion Exchange, where the activated carbon granules, remove the heavy metals like lead and arsenic
• Fifth Stage - Electro Adsorption removes the harmful chemicals such as chlorine, pesticides, and endotoxins

It is available in both electric and nonelectric variants, and some EDT purifiers also come with storage tanks. This type of purifier is ideal for water which has less than 500 ppm TDS.

Different types of water purifiers

Non-Electrical With Storage

These water purification units have storage tanks to store water after it has been purified through sediment and activated charcoal filters. They are useful in places where water supply is unreliable.

Non-Electrical Without Storage

Made up of food-grade plastic, these type of water purifiers are directly fixed to the water tap. They have candle-shaped filter units which consist of a resin filter. They’re UF and Activated Charcoal filters that run without electricity.

They can help you to get pure drinking water anywhere, anytime, owing to their portability.

Electrical With Storage

Electric water purifiers need to be connected to the water supply and run on electricity. They use sediment filters and activated water filters along with UV or RO purification systems, which need electricity.

Electrical Without Storage

Electrical water purifying units are also available without storage tanks. These types of units are useful in places which have a steady supply of electricity throughout the year and the quality of water is the same as of those with storage.

Water Purifiers with In-built Pumps

With the help of built-in pumps, water purifiers can even draw water stored in a vessel, making them perfect for areas with low water pressure.

Choosing the right water purifier

If you don’t want to dive deep into the technicalities of the different water purification approaches, then you can simply refer to the table given below which will help you to buy the right purifier for your home or office. Here we have listed all the parameters to be evaluated and choose the right water purifier according to your requirements. 

Top water purifiers in India

1. Kent Grand Plus water purifier

Key Features:

• Kent Grand Plus boasts 7 stage purification system using RO, UF and UV. It can be used for all types of water sources like bore-wells, tanks or tap water.
• It is suitable for high TDS water and can purify water with TDS level as high as 2000 ppm.
• The water purifier features a transparent cover giving a complete view of all the process that works behind to give you 100% pure and safe water. 
• The water storage tank has the capacity to store up to 8 liters of purified water and purification capacity is up to 20 liters per hour, making it a good fit for a large family.
• Built-in SMPS that keeps the purifier completely safe from any voltage fluctuations which is a common feature in most Indian households.

2. Livpure Glo water purifier

Key Features:

• Livpure Glo water purifier removes the dissolved and suspended impurities from water.
• It also adds the required essential minerals and balances the water PH level via Mineralizer.
• The purifier comes with a one year warranty and is a reliable on-site support across India.
•  Livpure Glo is ideal for all kinds of water sources and effectively removes the commonly found impurities in water.

3. Livpure PEP Pro Plus water purifier

Key Features:

• Livpure Pep Pro Plus boasts a 7 stage purification process that comprises of a Sediment Filter, Pre Carbon Block Cum Adsorber, Anti-Scalant Cartridge, RO Membrane, UV Disinfection Column, Ultra-filtration Cartridge, and a Silver Impregnated Post Carbon Cartridge, to give 100% pure water.
• It uses a special Silver Impregnated Post Carbon Cartridge which improves the taste as well as the quality of water. 
• Since the water purification is done using RO, UV, and UF, you can use this purifier for all types of water sources.

4. HUL Pureit Classic water purifier

Key Features:

• This water purifier has 6 stage purification technology with RO+UV to provide you 100% pure and fresh water.
• It removes dissolved solids and all organic as well as inorganic impurities to ensure that you are drinking only pure water.

5. Kent Ace Mineral water purifier

Key Features:

• Kent Ace Mineral is one of the highest selling RO water purifiers in India.
• With its 6 Stage purification process using RO, UV, and UF, this purifier from Kent is perfect for purifying water from all water sources like Municipal Water supply, groundwater, lakes or rivers.

6. Havells Max water purifier

Key Features:

• The 7 Stage purification process with Sediment Filter, Activated Charcoal Filter, RO Membrane, Germicidal UV, Minerals Cartridge, Silver Impregnated Taste Enhancer and Revitalizer Cartridge in this purifier gives you 100% pure water which is full of essential minerals.
• Storage Capacity is approx. 8 liters and the purification capacity is up to 15 liters which is more than sufficient.
• Unlike other water purifiers, it can be placed on a countertop or mounted on a flat wall or corner as per your choice..

7. Blue Star Aristo water purifier

Key Features:

• It is a compact and stylish water purifier.
•  Available in two eye-catching colour variants of white and black, the purifier comes with a 6 stage purification process: Pre-Filter, Pre-Carbon Filter, Sediment Filter, RO Membrane, Post-Carbon Filter and UV Lamp.
• There is a double layered purification system such that the incoming water passes through the RO membrane and then the UV lamp to remove all the impurities from water.
• It has a high purification capacity of 12 liters/hour, due to its high-quality RO membrane which is also capable of ultra-high TDS removal of up to 96%.

8. Hindware Calisto water purifier

Key Features:

• Hindware Calisto has 6 stage purification which comprises of an ultra-fine sediment filter, pre-carbon filter for adsorption, UV lamp, RO membrane, UF membrane, and post carbon filter. Calisto is good for all types of water sources.
• Hindware Calisto comes with a tank capacity of 7 Litres and purifies up to 12 liters of water per hour.
• A distinct feature of this purifier is it’s  ‘Magnet Assisted Detachable Front Cover’.

9. HUL Pureit Ultima water purifier

Key Features:

• Hul Pureit Ultima uses 6 Stage purification to give you 100% pure and safe drinking water. The best part is that the water passes through both RO and UV to remove the organic and inorganic impurities.
• This HUL Pureit purifier also comes with a TDS Modulator which adds all the essential minerals in the water after its purification, thus, making the water tasty and healthy. 
• It has a large storage tank of 10 liters which is more than sufficient for an average Indian household.
• Digital Advance alerts you 15 days before when the Germ Kill Kit needs replacement.

1.  Aquaguard Genius water purifier

Key Features:

• Aquaguard Genius features a reliable 7 stage purification using RO, UF and UV technologies.
• It comes with a 7 liters water storage capacity and purification capacity of 15 liters /hour.
• It uses a smart technology called ‘Tasteguard’ which senses the hardness and TDS levels of the water automatically and picks the optimum purification method.

 Advantages of a water purification system

• Removes odour and foul smellBy restoring the natural combination of water molecules and cleaning the contaminants, it can make every sip of drinking water more satisfying.

• Protection against harmful micro-organismsWater can contain microorganisms that can cause diarrhea, vomiting, fever and even death. Water purification system may kill the microorganisms to make the water safe for drinking.

• Removal of toxic metalsWhile some minerals may not pose any health threat, but react with other minerals in water and cause deposits, that may make the water unfit for drinking. Some poisonous minerals are sometimes found in water, such as lead and copper, which are dangerous for your health.

• More SavingsYou can save the additional costs of buying bottled mineral water in your daily routine or during travelling. Just fill up your bottles with pure water from your home water purifier and have a continuous supply of clean drinking water anytime.

• Time-savingIn case, you are using the traditional methods of boiling water before every use, installing a water purifier with RO and UV filtration at home or office will save a lot of time for you.

• Environment-friendlyUnlike the bottled water, you are using very fewer resources and preventing pollution if you are using a home or office water purifier for clean drinking water.

 Maintenance of water purifier

The importance of a water purification system in our lives can never be taken for granted. It ensures that the water you drink is properly filtered and free of any physical, inorganic as well as organic impurities. With different filters and cutting-edge purification technologies, a purifier makes sure that the water you drink is pure and hygienic. Hence, it is important to take care of the maintenance of the water purifiers.

• Change the water filter regularlyWater Filters present in the purifiers bear the brunt of the purification process as they are one of the main components which purify the incoming water by eliminating contaminants. To ensure smooth functioning of the purifier, you need to check the input water quality and set your purification method accordingly. With time, the contaminants that accumulate on the filters reduce the efficiency of the water purifier. This may result in a reduced flow rate and water having a bad odour. If you see such signs, ensure that you change your water filter at the earliest.

• Regular service of the water purifierBy getting your water purifier serviced regularly from an authorized and reliable technician, you can make sure that it gives optimum water purification at all times. Moreover, it also gives you peace of mind as the spares used are 100% genuine.

• Check for drips and leakagesIf you are experiencing any leakage in your water purifier, don’t neglect it at any cost. Get in touch with a technician and a scheduled maintenance check-up.

• Replacement of RO membraneRO technology is a widely used process of water purification which uses membrane technology to purify the water which has high TDS. The RO membrane absorbs the dissolved impurities along with the colloidal particles. When the pores are clogged, it results in foul-tasting water. You must replace the membrane when you find such signs.

• Annual maintenanceAnnual Maintenance contract can help in maintaining the water purifier. Just choose a trustworthy water purifier from a plethora of options and maintain it without any lengthy procedures or hassles by taking the Annual Maintenance contract.

RO water purifiers will give optimal performance only when you follow all the above-mentioned maintenance tips. This will ensure the best performance of the water purifier and its service life will also be prolonged. Get in touch with the best water purifier dealers and water purifier services near you.