Which water purifier to buy?

Water is one of the most important thing in our life.

If drinking  water is not pure, you and your family's health may get affected, so you should be using the best of best water purifier which will cost you just 15000-20000 , off course that amount is not as valuable as your family health.
That's what you watch/hear in commercials of allwater purifier manufacturing companies.
But before you listen to any of them or get impressed by a commercial of any water purifier,
Know what you need, which depends on source of your drinking water ( Muncipal/Corporation supplied or Borewell) .
Summary(Final recommendation) :

If your drinking water comes from Muncipal/Coporation : 
Any water purfier that UV purification stage is good enough for you.
If you are drinking Ground water( borewell,well) get your water's TDS level tested and if your water's TDS level is below 500, you can still go for UV filtration based water purifier,  if you water's TDS level is above 500, it's recommended that you go for water purifer that has RO filtration stage.
Detail explanation: 
Water Purification stages in home water purifiers:  
  • UV purification
  • Reverse Osmosis
  • Activated carbon filtering
  • Distillation
  • Ion exchange
  • Electro deionization
Not all of them may be necessary for you, it depends on the source of drinking water.

RO is most important(wrong): Water purifier with RO filtration comes 5-8K costlier than the general one (UV filters) , and most people consider RO to be best without knowing if it is actually needed or not? ( and there are some people like one of my friend who says ...costliest product is the best product, because it must be having more/better qualities than other ;o). 
"Gaurav bhai ki Jay ho" ).
What is TDS?
TDS stands for Total Dissolved Solids.
What is the recommended level of TDS?
If you are drinking a water which already has TDS level between 100 to 500, that good enough,
If you are drinking a water below TDS level 100, you missing many minerals and salt that you body is suppose to get, and you are advised to increase salt intake to fulfill your body's need.
What is the TDS Level of my water? 
Municipal corporation water: If you are drinking the water provided by your municipal/corporation , your water is most probably suppose to have TDS level below 500, and you do not need and RO purifier, and if you are still using RO purifier, purified water's TDS level will be below 50, which is not good.
If Municipal/Corporation is providing you water it means, it has to be less than 500 TDS,
As per Mr. Sunny(associated with research water purification industry )  highest TDS level of municipal/corporation  supplied water is in Kolkata which is 450, most of the city's are in the range of 150-350.

Ground water( bore well,well ) TDS level : In general it is suppose to have high TDS  level ( 500-1000) and may need a RO purfication,  but there is no thumb rule that ground water's TDS is always high , so it's better to get tested. some places it's ground water TDS can be as low as 300-500, like some areas in my native Indore(M.P.)

Where to get TDS level tested in Bangalore?
You can get in touch with Public Health Department of Bangalore Municipal Corporation or analytical laboratories like Public Health Laboratory (BWSSB) 22210248, Mineral Engineering Services - 25432968, 9448024304, Cosmic Industrial Laboratories Ltd - 28520541, 1522, 1523, Essen Labs - 23341230/1567, Crystal Aqua Purity Systems (CAPS)- 23362882, 28601762, 28603450, Bangalore Test House - 23356415/23388895/23502684, Viswas Environmental Laboratory - 080-25262987,25277870. These laboratories conduct variety of tests on taken water sample for impurities, TDS, turbidity, minerals (calcium, magnacium, Ph value, chlorides, Nitrates, Arsenic, pesticides, bacteria etc. It costs around Rs 1,000 and onwards. Electrodes used in on-spot testing may be meant for pH levels, but doing through testing will give reading on variety of components and their permissible or ideal limit in water

but after you get it tested please post the result here as comment.
Source: here

How long purified water would stay good if stored?
Answer to this question does't come from any source, this is my own and personnel view.
I think we should not keep purified water more than 24 hours,

I currently use a UV + Carbon purifier and once I have observed, larva in the purified water after 4-5 days..

Perhaps the reason for this was that I did not get the filters changes from long time 8-12 months or the water consumption was less during these days and stagnant water can always get infected. 

requesting reader of this post also to conduct similar experiment, do not cover the glass/mug/bucket completely, let there be some place for ventilation, 
and also do not keep it completely open also,  else life in water can come from outside too ;o)

Best price of water purifier?
I personally prefer referring to Compare India before buying any electronics item, for two reasons,
one is I can compare the items based on their feature and second is i get to know "almost correct best price"
Being an Indian I encourage you to still bargain on the best price mentioned on compare india :o) .



  1. n general it is suppose to have high TDS level ( 500-1000) and may need a RO purfication, but there is no thumb rule that ground water's TDS is always high , so it's better to get tested. some places it's ground water TDS can be as low as 300-500, like some areas in my native Indore(M.P.)for the ground water

  2. Which purifier is better interms of price,sales and services. Kent or Aquaguard.

    Amit dangwal

  3. Ali, this is really very helpful info for today's world! You have made very unique stuff for every one! i loved it and have shared with FB! keep them coming!
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  5. best water purifiers:-I think eurekaforbes is a best water purifier.

    1. Get aquaguard Water Purifier from Eureka Forbes in latest technologies and find Aquaguard water purifier price, features queries and technologies from Eureka Forbes with best prices.

    2. Could you please let us know which model of Eureka Forbes? And can that convert borewell water to drinking water?

  6. Propello Innovations Private Limited,the innovations of modern technology brand products like kitchen chimney in kolkata,kitchen chimney dealers in kolkata.we also provide (RO)reverse osmosis water purifier in kolkata ,orrisa & guwahati.

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  7. neoropurifiers is best i am using it from 2 years very good and they do free service immediate delivery. 9849088843, www.neoropurifiers.com

  8. Hi,
    I get water having < 430 TDS and I have Kent Gold (UF membrane) water filter, Is it ok to use it?
    How can I clean that membrane at home??
    Please suggest.

  9. @Abhinav : Hi Abhinav, UV membrane waer purifer is good enough. Its generally a 3 stage purification.

    stage 1 : there some candle
    stage 2 : carbon filteration
    stage 3: UV

    You rarely need to touch the UV membrane, you may need to change that once in 6-8 years...

    other two( stage 1 and 2 ) need to be cleaned once in 6-9 months, and its very easy to do.

    you should once call the Kent ( or Kent authorized guy) once to clean it up. While they are doing it you will observe that its dam easy it to do it yourself, still make a video, and next time onward do it all yourself ( and save 350-400 Rs)

    Once in 1-2 years you should change the candles and
    carbon, which you can ask KENT people to courier to you or you can buy directly from KENT office in your city.

  10. This comment has been removed by a blog administrator.

  11. best water purifier Which one is Best Water Purifier in india? this question always come before buy water purifier for home. Aquaguard & Kent two Big Companies who manufacturer a good quality water purifier. if you are resident in india then you can get both product in every mojor city in india.

  12. What about Zero B..are they good?

  13. @RD : I think most of them are same, brand etc doesn't matter that much. clean it regularly, that enough.

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    Arif, you are telling about TDS level of water, please tell me how to check TDS level in local areas and after that which one of the best purifier system RO or UV?

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  26. This page came up when I did a Google search for acceptable TDS limits for UV filter. The manufacturers only say low TDS and only in this page I read "if your water's TDS level is below 500, you can still go for UV filtration based water purifier". My well water TDS was 195 mg/L and so I went ahead and bought a Kent Maxx UV+UF filter. After few days, I notices that the filtered water has a smell ( while the direct tap water has no smell) and so contacted Kent. Then they told me that UV filter will work fine only for TDS up to 150. So what do I do now? Seems even their extra UF filter is of no use? Where can I see some official standards for these TDS levels so that I can ask for a return of the product.

    1. I was also thinking of buying Kent maxx but after your comment I am unable to decide which one to buy. My name is Avishek andci live in Kolkata and the TDS level is 190. I use corporation water. Please suggest me a good water purifier

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  28. Best water purifier is essential needs for our home. Because everyone wants to use best water purifier daily basis so we can select one best purifier. So, i am using Nasaka water purifier for home and i am very happy with this ro water purifier.

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  30. M living in indore at limbodi. how do i get the tds value for bore well water at limbodi area or how do i test this water tds level?

  31. How do I get the TDS level of bore well water at limbodi, Indore area. or how do I test this TDS level of water.

  32. Please suggest a cheap and best water purifier which can convert borewell water to drinking water.

  33. @Athar: for converting borewell water you should go for an RO.
    Check if Alfa has one. In Metro Cities you have a AquaGrand which is cheap and has more stages than big companies.

  34. This is really very helpful information for today's world!You have made good unique stuff for everyone! The best water purifier is essential needs of our home. Because everyone wants to use the best water purifier daily basis so we can select one best purifier. So, i am using an Aquaguard water purifier for home and i am very happy with this ro water purifier.
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  35. I agree with you it is not necessary to install RO water purifier for every area. The requirement of water purifier is depend upon quality of water of user local area. If water of local area doesn't contaminated with mineral salt, heavy metal and pesticides then it it is not required to use RO water purifier and UV water purifier is sufficient because water contain microbes and UV purifier is best option for purification. If water contain impurities but it doesn't contain lead, arsenic, mercury and florid then UF filter is sufficient. If water high TDS and heavy metals, microbes, chemicals and pesticides. Then it must be required to use RO water Purifier.

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  44. hello fnds i want to know which is better option for me i want to know with 195 TDS municipal water purification i have to purchase RO? or UV+RO? which is good for me? I am Yogendra singh for Bareilly U.P west India

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  47. you can buy water purifier from the official website of Dolly Battery. They are leading seller of multi-brand water purifiers in Delhi. If you are looking for RO filter, ro water purifier price, then you can visit their website and buy the products. The good thing about the company is that they provide free installation, free home delivery and product shipping in just 24 hours.
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  49. In case of best alkaline water purifier, Blue Mount is providing the best water purifier in India and this is because Blue Mount use the natural way to make the water suitable alkaline for drinking purpose. Like other company they did not use ionizer which is the artificial way to create ion in water and it harms the body. For better enquiry please contact at 011 4949 1515. Free demo is also available here.