Your Ultimate Water Purifier Buying Guide: How to Choose the Perfect Purifier for Your Home

by | Nov 8, 2023

Your Ultimate Water Purifier Buying Guide

Are you wondering what type of water purifier is best for your home? Your question makes sense, as external factors like your home water supply source also affect the water purifier. 

Some places are supplied with groundwater through water tanks. Water quality in these places is primarily poor with contaminants like bacteria, metals, or high TDS (Total Dissolved Solids). These places require a different water purifier than those receiving spring water.

If you are aware of these issues and looking for a new water purifier for your home, you have landed at the right place. We will provide the most compelling analysis to help you choose the correct water purifier for your home.

Water Purifier Guide

1. Type of Water:

Before choosing a water purifier, you must know what type of water you receive at home and how much to purify it. The TDS of water is crucial in selecting the correct water purifier.

Municipal WaterRivers, lakes, etc.1-200
Ground WaterTube Well or Borewell200-2000
Multiple SourceMixed SourcesVariable

After determining the type of water you receive, you must know the different types of water purifiers and their functions.

2. What are the three types of Water Purifiers? 

There are broadly three types of water purifiers. Their technology and application are suited to different types of water. Pricing of different water purifiers also varies based on the technology used.

Purifier TypeFunctionStarting Price(INR)

Gravity Water Purifier
Gravity-based water purifier,
consumes no electricity,suitable for low TDS water 


UV Water Purifier
Uses intense ultraviolet rays to kill bacteria and viruses,
suitable for low TDS water,
does not remove dissolved impurities


RO Water Purifier
Uses a fine semi-permeable membrane to eliminate impurities,
reduces the hardness of water,
eliminates dangerous chemicals,
Ideal for a TDS of 200 ppm to 2000 ppm


Depending on the type of water, you can easily chalk out the water purifier perfect for your home.

3. How do I know which Water Purifier is best?

The best Water Purifier for you largely depends on the TDS of the water you receive at your home. 

TDS or Total Dissolved Solids is the total dissolved substances concentration in water. TDS comprises inorganic salts and some amount of organic matter.

What is the best TDS for a Water Purifier?

Between 50 and 150 ppm

The ideal Water TDS level is between 50 and 150 ppm (less than 300 ppm). A high   TDS level is not suitable for health. High TDS levels can have technical impacts and an imbalance in the taste and odor of drinking water.

You can select the best water purifier for you based on the TDS values given below:

TDS Value (in PPM)Type of Water Purifier Needed
50-200 Gravity, UV
>1000RO & UV

4. Water Purifier’s Storage Tank Capacity:

Many places may not have a constant electricity supply for the water purifier to function in real-time. A storage tank with an appropriate capacity must address this issue.

Most water purifiers come with an in-built storage tank of different capacities. Pick the storage tank with a capacity that suits your household.

Number of PeopleStorage Tank Capacity
25 litres
48 litres
8>10 litres

Now that you know what type of water purifier is the best for you, let us move on to some general doubts that most people have.

Frequently Asked Questions

1. Which water is best for drinking, RO or UV?

RO (Reverse Osmosis) water is better than both UV and UF. RO water is the safest to drink.

UV (Ultraviolet) cannot remove dissolved contaminants from water. However, RO can. RO purification removes dead microorganisms from the water after killing them. RO water also enhances water taste and is excellent for high TDS levels.
RO and UV purifiers cannot function without power. Most of the beneficial minerals in the water are retained by UV. 

RO water purifiers are ideal for hard water or areas with high TDS levels. UV water purifiers are suitable for purifying municipal or tap water with low TDS levels.
RO water purifier aids in removing heavy metals and pollutants, whereas the UV water purifier cannot do so.

2. Is 15 ppm TDS safe for drinking water?

15 ppm water is safe to drink if filtered from a reliable source. The majority of your nutrition will always come from your food. In food deserts and impoverished areas of the world, water mineralization may supplement some Magnesium and Calcium. 

But if you can afford an RO system producing 15 ppm, it is doubtful this applies to you. Evidence shows that people with poor nutrition have benefited from water mineralization. 

However, the primary reason we drink water is hydration. Reducing safe drinking water to a TDS of 15 doesn’t make it unsafe to drink, nor is it likely to deprive you of anything unless you’re terrible at eating.

3. Which company is better in water purifiers?

Some reputed water purifier manufacturers in India are:
Eureka Forbes
AO Smith
V Guard

4. What is the best TDS for a Water Purifier?

The ideal Water TDS level is between 50 and 150 ppm (less than 300 ppm). A high   TDS level is not suitable for health. High TDS levels can have technical impacts and an imbalance in the taste and odor of drinking water.

Bhuwan Bhatia

Bhuwan Bhatia

Bhuwan Bhatia, an engineering graduate with a diverse background, has been passionate about entrepreneurship since age 13. Founder of edtech startup Technoshaala, Bhuwan now focuses on leading his innovative water management startup, FLOTAA, in Kanpur to create sustainable solutions.
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