5 Ultimate Tips to Select the Best Water Purifier

Before shopping online, we all read reviews about the product and pick the right product that suits our needs.

Unlike Smartphones, Water Purifiers can not be reviewed since we can’t keep all Brand water purifiers at our home and review them.

Most of us purchase low-cost water purifiers and later regret that decision. So, In this post, I am going to point down a few tips so you can choose the right water purifier.

1. Types of Water Purifiers

Water purification technologies are getting advanced every day and we have various kinds of water purifiers in the market like Gravity Based Water Purifiers, Reverse Osmosis, Ultraviolet, Ultrapurifiaction and RO + UV water purifiers.

Gravity Based Water Purifiers

These purifiers are the most budget-friendly water purifiers on the list, with prices ranging from ₹1000 to ₹5000. Gravity-based water purifiers do not require electricity to operate, and you can install this type of water purifier in your home only when you get soft water and the TDS levels in the water is low.

Please note that the Gravity Based Water Purifiers are not as effective as RO and UV Water Purifiers. Always choose a Gravity Based Water purifier that is based on Ultrafiltration (UF) technology. Please note that Gravity Based water filters are better than boiled water.

Reverse Osmosis (RO) Water Purifiers

If you are living in a place where the water contains high TDS levels, you can install a Reverse Osmosis based water purifier. RO purification process can remove Heavy Metals, Pesticides, Arsenic, fluoride, Cadmium, and other toxic dissolved salts present in the water.

Electricity is required to operate an RO Water purifier. Conventional RO Water purifiers will remove natural minerals along with toxic dissolved salts. So, Make sure you buy an RO water purifier that comes with a TDS controller which retains Natural minerals in the Drinking water.

Ultraviolet (UV) water purifiers

The Concept of UV water purifiers is very simple yet effective. The UV bulb located inside the water purifier can kill all the Viruses, Bacteria, and other microorganisms present in the water but the only problem with UV water purifiers is, they can not remove the dissolved salts present in the water.

Ultrafiltration (UF) Water Purifiers

UF is similar to RO and does not need electricity to operate. These type of water purifiers uses a very fine membrane to kill the bacteria, cysts and other microbes present in the water and functions very efficiently when used with the public supply water.

RO + UV Water Purifier

Some of the Water purification brands employ both the RO and UV technologies in the same water purifier. These types of water purifiers can work with all kinds of water. Always, purchase an RO + UV water purifier that comes with a TDS regulator. Double-check the Total Dissolved Solids (TDS) Levels.

2. Capacity

Most of the water purifiers come with a storage tank to store the purified drinking water. For a small family, a 5-8 liter water purifier can do the job. All the automated water purifiers begin the filtering process as soon as the water levels decline in the storage tank.

3. Electric or Non-Electric

All the Gravity Based Water Purifiers are non-electric but are not as efficient as Electric water purifiers. If you are living in a place where there is a constant electrical outage, you can buy a UF water purifier that functions without electricity. Also, the maintenance cost for these purifiers is very less.

All the RO, UV, and RO + UV Water Purifiers require a power supply to purify the water. If you are an Adventurous Traveller or when you are out of the home, you can make use of Lifestraw portable water purifiers.

4. Maintenance and After-Sale service

Maintenance is important for all kinds of water purifiers. Most of the UV and RO Water purifiers have a Filter Change, UV Bulb change Alarms. These alarms will notify you if there is a need to modify the filters and you have to change them in time, or else the Water purifiers will stop functioning. After all, Fail Saftey mechanism is one of the essential features of an ideal water purifier.

Most of the users are complaining about the poor after-sales support which is a big no when it comes to the water purifier. Always buy the water purifier from reputed brands that offer excellent after-sales support. Some of the trusted water purification brands include HUL Pureit, Kent, Eureka Forbes, and Tata Swatch.

5. Installation, Warranty, and Ratings

Some of the top brands like Kent, HUL, Eureka Forbes, and Tata offer free installation and one year of manufacturer warranty. But some small companies charge an extra amount for installation.

So, make sure you check the installation and warranty details before you buy a water purifier online. We recommend you purchase the best water purifiers at Amazon since they offer on-time delivery and good customer support. Make sure you read customer reviews at Amazon before you purchase the product. A Product with an Average rating of 4 stars is good. Don’t confuse yourself self by reading all the reviews since every product has an imperfection, always consider the average rating.


  1. What is capacity of UV filter ….meaning up to what ppm can a UV filter the water …..some are saying if your ppm is above 200 u cnat use UV as it will get eroded ????

  2. I want to buy a purifier I am living in joint family and we are using bore water so please which purifier is suuio for us

  3. Hi Sir,
    In my home we are using bore water and the TDS level is 800. I would suggest to go for RO and advice the wastage water after the process where can we use it?

    • You can collect the reject water via drain tube and use it for washing utensils, cleaning the floor and Gardening purpose.

  4. well water might contain high TDS levels. So, It is better to go with a Reverse Osmosis water purifier that comes with a TDS modulator/mineralizer.

        • Sir
          I checked TDS it is 55. but as I said earlier it produces a foul smell…now can u suggest the purifier with brand

          • The TDS levels in your water are okay. Rainwater also has the same TDS levels. For low TDS levels, you can go with UV UF water purifiers like Kent Maxx or Aquaguard SUperb UV UF water purifier.

  5. I am using well water . But it has a foul smell. No colour change but smells like dirty water.which purifier should I select

    • For TDS levels 236ppm, it is better to go with a UV UF water purifier. These water purifiers are suitable for low TDS water and the maintenance cost will be low. Reverse Osmosis is required only when the salt levels in your water exceeds 500 ppm.

  6. TDS level at my place (Kolkata North) is 450 ppm and I need a water purifier that has at least 8-10 liters water storage capacity with low maintenance and good after sales support. Which product should I opt for?

    • Are you sure about the TDS levels in your water? RO water purifier is required for TDS levels above 500ppm. For low TDS levels, UV UF water purifier will do the job. If you are not sure about the TDS levels, you can opt for an RO that comes with a TDS Controller or Mineralizer that retains the natural minerals in your water. Check out the below models.

      Pureit Ultima
      Kent Grand Plus
      Kent ACE Mineral
      Livpure Pep Pro

  7. Hi, we are using Bore water for now we might expect muncipal water after a year. Water TDs is :550 now for bore water. Can you please advise which water purifier would be good. We are planning for Aqueaguard.

    • For TDS levels above 500, It is better to opt for an RO water Purifier. If you are looking for Aquaguard water purifier, check out the below models.

      Aquaguard Magna HD This model comes with RO UV combination, the storage capacity is 7 liters and this water purifier can work with water having TDS levels up to 2000ppm.

      Aquaguard Geneus – This model comes with RO UV UF combination and is suitable for all kinds of water sources.

    • You are right, For Low TDS levels, UV UF water purifier is the right choice. Kent Maxx is the best budget UV UF water purifier and it comes with a 7 litre storage tank.

  8. Hi,
    You stated that UV can kill all the Viruses, Bacteria and other microorganisms present in the water but their dead bodies remain in the water. The dead bodies must be harmful if passed with water. What is the solution ?

    • The dead bacterium is not harmful. Most of the UV water purifiers come with UF combination to ensure the water is completely free from all the pollutants. It is better to go for UV UF Water purifier when the TDS levels in your water are low.

      • Thanks you very much Chaitanya. It helps.
        TDS level is around 700-800 ppm.
        Is it ok for me to buy RO UF or RO MF ? Are they equally good as RO UV UF?

        Also can you comment on water container ? Is stainless steel better than food-grade plastic ?

        • RO Membrane will not only remove Salts and Hard metals it also removes bacteria, virus, and other contaminants. UF, UV or MF are there for extra safety. Any combination is good. Stainless Steel Container costs a little bit more than Food Safe Plastic. ABS Plastic is also good and durable.

  9. Dear Sir
    I am a banker & it is a transferrable job.In TN the TDS is above 600 which needs R.O. but if I move to a place where TDS it is below 200, we cant use RO purifiers as it will remove all essential salts.Please advice me a purifier which can function in every situations.

    • Only the Local or conventional RO water purifier removes all the Minerals. RO that comes with a TDS controller retain the natural minerals in the water. So, No matter the TDS levels, you can use Kent RO, Aquaguard RO or any other water purifier that comes with a TDS regulator. Have a look a this site to find the best water purifier for your needs 🙂


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