Price, service cost and benefits

Clean drinking water prevents waterborne diseases and boost immunity in different waysTherefore, regular access to clean drinking water is considered essential.

When clean drinking water is not available, a water purifier becomes a necessity.

There are different types of water purifiers available in the market and each type has its own advantages and disadvantages.

However, RO water purifiers are widely accepted to be the most effective in removing impurities from water.

In this article, we will explain what an RO water purifier is, how it works, and what its price is.

We will also list the maintenance cost, advantages and disadvantages of RO water purifier.

What is an RO water purifier and how does it work?

An RO (reverse osmosis) water purifier uses high pressure to force water through a semi-permeable membrane (also known as an RO membrane) with very small pores (approximately 0.0001 microns in size).

The pores of an RO membrane are so small that only water can pass through, leaving behind impurities such as bacteria, fungi, microbes, salt and some heavy metals.

The end result is clean, pure drinking water, with all impurities removed through a separate outlet (also known as a drop line).

In addition to the RO chamber, most modern RO water purifiers are equipped with additional filtration methods, including UV (ultraviolet) and UV (ultrafiltration or gravity filtration).

In addition, there are additional filters such as sediment filter, carbon pre-filter and carbon post-filter.

Below is a simple diagram that shows the important parts of a modern RO water purifier and how water flows between these components before offering you clean drinking water.

The RO water purifier consists of the following steps:

• Sedimentation filter:

  The sediment filter is usually the first block through which the water passes. It removes large visible contaminants such as dirt, sand, dust and debris.

• Carbon pre-filter:

  A carbon pre-filter uses granular or block activated carbon, which has a very large surface area and can remove organic impurities and chlorine (commonly used by government water departments to remove bacteria and germs) through adsorption. It is usually placed in front of the RO membrane.

• Carbon post filter:

  A carbon post-filter located after the RO membrane removes unpleasant odors from the water.

• UV filter:

  The UV chamber further purifies the water. It also uses a semi-permeable membrane, similar to a reverse osmosis membrane, but it is not as dense. Therefore, it allows minerals and salts to pass through with the water, but removes bacteria, particles and sludge.

• UV filter:

  The UV chamber uses an ultraviolet lamp to neutralize bacteria and germs in the water. If any organic matter (bacteria, fungi or microbes) passes through the previous filtration steps, they are killed by the UV rays emitted by the UV light.

As explained above, most RO water purifiers also use additional filters and techniques to make the water as clear and pure as possible.

Compared to water purifiers that use only UV or UV, reverse osmosis water purifiers provide the purest water.

However, they also cost significantly more and require higher maintenance costs.

What are the advantages of RO water purifier?

As explained earlier, RO water purifiers provide the purest water when compared to UV or UV water purifiers.

They remove almost all types of bacteria, contaminants and heavy metals. And all this in addition to removing excess salt from the water and reduction of TDS of drinking water.

RO water purifiers are extremely reliable and trustworthy.

What are the disadvantages of RO water purifier?

Although RO water purifiers remain the most advanced form of water purifier, they also have some disadvantages.

First of all, they are much more expensive than UV water purifiers and UV water purifiers.

Moreover, the rate of water filtration is lower compared to other types of water purifiers due to the various processes occurring inside the RO water purifier.

Another disadvantage of RO water purifiers is that they require electricity to operate. Therefore, they are only suitable for homes with a constant power supply, which may not be ideal for homes with infrequent power supply.

Yes, they usually have water storage tanks that can store between 5 and 15 liters of water (depending on the model). They require at least a few hours of electricity each day to operate properly.

Best RO Water Purifier Brands in India

While there are dozens of brands that manufacture and sell RO water purifiers in India, depending on various factors including quality, availability, price, after-sales service and coverage, we recommend purchasing water purifiers from the following brands.

• AO Smith
• Aquaguard (author: Eureka Forbes)
• Blue Star
• Carrier
• Faber
• Havells
• Kent
• LG
• Livpur
• Mi (from Xiaomi)
• Nasaka
• Pureit (from Hindustan Unilever)
• V-protection
• jacuzzi

You can view our list of best RO water purifiers in India.

HOW MUCH DO RO WATER PURIFIERS COST IN INDIA?

The price of RO water purifier starts from Rs 7,000 and goes up to Rs 45,000.

Obviously, this price range is for reverse osmosis water purifiers that are primarily intended for home use.

RO water purifiers designed for offices and entire buildings can cost hundreds of thousands of rupees.

The price of an RO water purifier depends on various factors, but primarily on the rate at which the water is filtered.

Other factors include build quality, number of optional filtration chambers, brand value, warranty period, speed and quality of service, service coverage, availability of hot or cold water, and smart features such as Wi-Fi connectivity and a smartphone app.

You can read our A Detailed Guide to Buying a Water Purifier to learn more about which purifier is best for you and what features you should look for.

WHAT IS THE SERVICING COST OF A RO WATER PURIFIER?

An RO Water Purifier Maintenance Cost can range from £2,000 to £6,000 per year, including the cost of replacing the RO membrane, other pre- and post-filters, UV lamp and labor costs.

Maintenance of RO water purifier mainly involves replacing the sediment filter, carbon filter, RO membrane, UV lamp (if equipped) and labor.

A sediment filter and carbon filter usually cost around £500 each and need to be replaced every six months.

The RO membrane should be replaced every one or two years (depending on the brand and daily water consumption) and this costs between £2,000 and £3,000.

You can read our detailed maintenance guide to learn more about maintaining RO and UV water purifiers..

Before you buy a reverse osmosis water purifier, you should know the cost and annual maintenance schedule, as well as the cost of common parts.

This will give you a clearer idea of ​​what to expect when it comes to the cost of maintaining your reverse osmosis water purifier.

You can read about Maintenance of RO water purifier in our detailed article..

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