water purifier buying guide

Secrets About Water Purifier Buying Guide Only A Handful Of People Know.

We hope that you’re assured every penny you spend to get the best water purifier is a penny wisely spent, due to the health benefits of uncontaminated and filtered drinking water. In this post we are telling you the secrets About Water Purifier Buying Guide, Only A Handful Of People Know.

The question arises that, are we ensuring that safe and pure water can be used for drinking by the upcoming generations?

The response to that question is both a NO and a YES. NO as the primary source of water contamination in the world is the disposal of human and industrial waste.

Yeah, as we’ve created a few of the best water purification machines to remove the impurities that ironically we were responsible for adding.

Besides this, there are, however, literally hundreds of reasons why you should look for the best water filter and bring one home.

Safety against life-threatening waterborne diseases due to the water pollution the odd taste of chlorine, calcium carbonate (which ensures that the coffee does not spoil) is separated from the tap water. Scratching on the surface of your kitchen utensils little to none.

The Only Water Purifier buying Guide You Need To Take a Look

It is essential to know the different kinds of impurities that are usually found in drinking water before we discuss the various kinds of water purification technologies and which ones meet your requirements. And then we can only know the need for water purifiers of many different forms.

Different Types of Impurities Found Commonly in Drinking Water

As discussed above, you can find different types of natural salts through water resources in your kitchen. In the same way, groundwater also contains plenty of natural minerals and salts.

The kinds of impurities present in the drinking water that comes to your house depend mostly on the water source and distribution process. Lakes, ponds, boron fountains, collected rainwater, urban wells, sewage reservoirs, etc. are the common sources of drinking water.

It depends on the water source for water quality, the level of contaminants such as hazardous toxins, chemicals, and biological impurities such as bacteria and viruses, and the hardness.

Un-dissolved solids such as sand and mudRiver, borewell or piped water where pipes are damagedMuddy or turbid appearance
Dissolved inorganic salts like Sodium & PotassiumBorewells and seawaterSalty or brackish taste
Dissolved inorganic compounds like Calcium & MagnesiumBorewells and river waterHardness and scale formation
Organic compoundsLakes and pondsFoul smell or bad odor
Decontaminants like ChlorineMunicipal piped water supplyBitter taste
Biological impurities like bacteria & virusesPiped water where pipes are damaged, water tankersBiological contamination, waterborne diseases

Water from lakes, rivers, and rainwater would usually have a higher TDS relative to water from bore wells. groundwater and  Borewell usually have high TDS and may possess harmful impurities like plum, arsenic, etc.

Different sources of water

Rainwater is the world’s largest water source. The groundwater is formed on this. In the mountains, we are seeing the snow falling down into the many different rivers to the plains.

Various water bodies meet it until they combine into the sea as it flows through the plains. There are other water bodies including lakes and ponds.

Some countries don’t have any of these existing water sources. Through the desalination plants that purify water, these countries meet the requirements of their citizens.

Sources of water pollution

When the rivers come down from the melting snowcaps, they become impure. Such rivers extract salt and minerals from rocks and sand as they flow to the plains.

These salts consist, along with phosphates and nitrates, of potassium, sodium, chlorine, and magnesium. They constitute the main element of the fully dissolved solids (the TDS).

When we go further where we will discuss more buying guide, you will learn more about TDS.

We have humans contributing to the contamination of this clean river water including natural salts. You have the waste that comes into this system including wastewater and other impurities. Industries contribute their mites through the release of toxic chemical materials, such as lead, arsenic, iron, and mercury.

Both these impurities make their way into human settlements which causes waterborne diseases such as cholera, dysentery, etc. Thus, water resources must be purified urgently before they are consumed.

Required TDS levels

There is an observation of the TDS concept in water. We understand how it makes its way through the water resources. In such a way, for its sustained growth, our body requires a few of those minerals and salts.

Therefore, one should make sure not to remove them from drinking water entirely. Now, the important point is what is perfect TDS level is required.

This is the standard acceptable TDS as follows.

  1. Below 300 – Excellent considered
  2. In 300-600 range – Good for human consumption
  3. Up to 600 but down to 900 – fair and acceptable
  4. From 900 to 1200- Low TDS levels
  5. Over 1200 – Unfit to drink and unacceptable.

Identify the Water Type – Soft or Hard Water

The level of dissolved solids in water can be categorized as soft and/or hard. Total Dissolved Solids (TDS) are known to be hardness levels and are expressed in parts per million ( PPM) and milligrams per litre ( mg / L).

1 ppm = 1 mg/L

Soft water is considered to be water with TDS values ranging from 150-300 ppm whereas water with a TDS value greater than 500 ppm is considered hard or polluted.

Water Purifier Types, and Mapping them to Your Water Type

This is a common way of doing things uniformly. This process includes transferring water to a semipermeable membrane that traps chemical impurities such as arsenic, lead, mercury, and pesticides. Bacteria, viruses, and other microorganisms may be taken care of in this membrane.

Using this process, you also can remove TDS up to 90%. Dependent on the configuration of a water purifier, the RO water filters work on a 5 or 6-stage purification.

Reverse Osmosis (RO) Purifiers

If you want to understand the working of RO, you need to first know about what is osmosis

Throughout the simple osmosis process, water flows naturally through a membrane, from a low-solute area (low TDS) and to a high-solute (high TDS) zone. The membrane pores (about 0,0001 microns) are very small, water molecules are smaller and the least dissolved contaminants and bacteria can be caught in the trap.

Reverse Osmosis mechanism

RO filtration is the next step of filtering. During the usual course, when moving across a semipermeable membrane, the water does not have the ability to shift from a higher concentration to a lower concentration.

You need to take the help of a pump to push the water into the membrane. Without the pump, it’s practically not possible. This is the reverse osmosis concept.

The RO membrane prevents all forms of waterborne impurities like TDS, pesticide residual products, impurities of heavy metals such as mercury, arsenic, lead, biological impurities, such as virus, bacteria, and microorganisms.

This is divided into two parts, the impure portion which flows down through the drain as well as the clean and filtered water passing through the UV-chamber to the following filtration phase.

Ultraviolet (UV) Purification

Ultraviolet or UV purification, as its name implies, uses ultraviolet rays for water purification. A UV purifier tends to work by throwing Ultraviolet rays at the water that kills or inactivates viruses and bacteria that cause the disease.

Traces of bacteria and viruses are found in pure water acquired through RO filtration. The RO membrane is unable to remove pollutants of less than twenty molecular weights.

This can not remove monovalent ions such as sodium, etc. This water is now passing through a UV chamber that kills both micro-organisms and bacteria through ultraviolet rays, rendering the water 100% healthy for drinking.

The Post-activated Carbon filter

This filter removes the volatile organic compounds which induce the poor smell of the purifying water from the RO water. The taste of water is improved.

Ultrafiltration (UF)

semi-permeable membrane required to clean water.  Since you read the first sentence you need to think about the differences between RO and UF because both RO and UF use a similar process to purify the water.

In the case of ultrafiltration or UF, a membrane is used that contains significantly larger pores (approx. 0.01 microns) than RO that has very tiny pores on a membrane (approx. 0.0001 microns).

The resulting water is eliminating traces of residual impurities using an Ultrafiltration membrane.  This purification membrane includes minute pores that catch any impurities that may have to escape the RO process.

Components of RO Water Purifier

Sediment Pre-filter:

The water is filtered by using the pre-sediment filter in the primary stage. The pre-sediment filter not only extracts fine and coarse pollutants impurities/stainlessness, but it also increases the performance of the RO / UF membrane and thereby decreases maintenance costs. If this is not a regular feature of the purifier, it can also be added separately.

Pre-activated carbon filters:

To extract organic and other volatile compounds from the water the pre-activated carbon filter is used, which keeps water away from bad odor.

TDS controller:

TDS controller controls the water levels. In addition to removing bad impurities, the RO procedure eliminates main minerals such as Calcium & Magnesium.

Adequate amounts of important minerals are retained in the filtered water in the TDS controller by changing the water proportion of the RO (low TDS) and UF (normal TDS) membranes in the final mixture.

The TDS controller splits the input water into 2 parts: A1 and B1. Part A1 water goes through a RO membrane, while Part B1 via a UV / UF membrane which not removing the TDS but killing the microorganisms.

the TDS controller specifically combines this water with the filtered RO water thus it increases the TDS levels and the pH value of the water.

Carbon Post-filter:

Carbon Post-filter serves as a polisher and the flavor of filtered water is improved. This extracts any unpleasant odor from water, too.

The Mineralizer:

The mineralizer extracts the minerals which have been missed only during the RO purification process. The mineral content of the water is refreshed and the quality of water produced thereby improves.


Many RO water purifiers have a simple monitor for cleaning on and off, a full tank, and so on. Many advanced cleaners also have fault warning, membrane switch, UV loss, TDS level indicator, purity indicator, etc.

Storage Tank:

This clean water is stored for later use.  Ensure that the container tank is made of foodstuff, non-toxic material. Many of the high-end water purifiers now have a water container tank in stainless steel. The storage tank capacity should also be checked.

Which filter to buy?

You had seen the functions of various water filter types, however, the key question remains unanswered. What filter type is suitable for your house? This depends on the water quality you have as a source of water.

Now let us focus on the different water sources and then see the usual types of impurities connected to the specific source. It enables you to pick which water purifier to start from.

TDS Level of Input water sourceIs the water muddyIs there a presence of biological impuritiesAn ideal choice of water purifier
Below 300 ppmNoNoGravity-based purifiers and faucet-mounted water filters are the best suited for such water
Below 300 ppmNoYesThe Ultraviolet filtration is the best solution under such circumstances as it can eliminate the bacteria and other microorganisms
Below 300 ppmYesNoIn the absence of TDS and biological impurities, you can opt for a UF filter to take care of the minute soil impurities
Below 300 ppmYesYesThe best machines are the UV + UF or the EAT machines
Over 300 ppmNoNoAs the TDS levels are above 300 ppm, you should be using the RO water purifiers
Over 300 ppmNoYesThe ideal machines are the combination of RO and UV
Over 300 ppmYesNoThe RO + UF combination should work fine because of the absence of biological impurities. To be safe, you can also opt for the RO + UV + UF water filters
Over 300 ppmYesYesInvariably, you should for RO + UV + UF water purifiers.

Gravity-Based Water Purifiers –

Excellent question.-   Given that they are cost-efficient and reliable, it is obvious, particularly for the first-time water purifiers, that this type of filter stimulates a lot of interest. Such filters do not give extra water purification capabilities like those of RO and UV filters. The only options for practical decisions are:

If you intend to change homes regularly and do not want bulky equipment to travel around each time.

If your budget is very low. You can simply purchase water from shops directly or another way is gravity base water filter which is quite cheap in cost.

Things to consider while buying water purifiers

In this post, We hope your mind is clear about the nature of water impurities. You have a choice to tackle the same kind of impurities that is used to purify the water. Before deciding on the kinds of water purifiers to be used, you must always check the water source in your home.

  • Conduct the TDS evaluation test to confirm the water level of TDS.
  • It is best to perform a chemical water source check in order to evaluate the amount of industrial pollution while living in an environment in which the factories operate.
  • If you are in doubt, the best, i.e. RO+UV+UF water filters are still available. However, note that the filters in comparison to the other water filters are comparatively expensive.
  • The type of water purifier you select plays a huge role in your budget. You will also take into consideration the costs of maintaining and removing the filters when deciding the budget.

Here are 10 Best Water Purifiers for Home in India

Understand the drawbacks of the RO water purifiers

The RO water purifiers use the latest methods for water purification. therefore, the big disadvantage is that they waste lots of water. More than 50% of the input water is reportedly wasted. It is a criminal waste in this era of water wastage.

EAT filters are the best options. However, when the input water TDS value is less than 500 ppm, you shouldn’t use the EAT filters.

You got uses for wastewater from the RO. However, there is a big proportion of TDS in the water which comes out as wastewater. Then, before using it to water the plants, clean the walls, etc., the water must be filtered. Take a look at twelve general steps in daily life to save water.

Installation Water Purifiers In Easy Way

Water purifiers are heavy nowadays. The important thing to know its dimensions until purchasing one and then have the plan to set up the wall in the kitchen area.

You have given the electricity supply and another inlet for water. In addition, the continuous water supply must be given at a decent pressure, especially if the water purifier is installed high on a wall of the kitchen.

Reducing and Reusing RO Waste Water

If the input water level of the TDS is less than 500 mg / L and there are no hazardous heavy metals such as lead, arsenic, and mercury, ignore the use of such water purifier. If that is the situation, it would be easier to use a UV+UF water purifier. If RO purification also isn’t required, save water without using RO water purifiers.

An average waste of RO purifier is 3 liters per liter of purified water. This ensures that just twenty-five percent of water is purified and seventy-five percent is coming out as waste.

Final Thoughts

This guidance should make it so easy for you to purchase your favorite purifier. The nature of water pollution and water filtration technologies that can be found on the market today have been discussed.

Water quality plays a significant role in choosing the purifier of your water. Pick the right one to improve the living of your family.

There are many top-notch brands and products in the market. Kent RO, Pureit, Bluestar, LivPure, LG, and Aquaguard are still the most general and popular water purifier products available in India.

Compare these water purifiers and select the one that better suits your family. Service centre availability is an essential factor. Typically the manufacturers offer a one-year guarantee to the manufacturer. You would also have to enter into an annual servicing arrangement with the company’s approved service centre.

Substitute the time filters. Using real replacement parts as fake parts will damage the purifier. So we are ending the debate on the purchasing guide to the water purifier. We believe you will benefit from this guide.

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