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What’s the difference between an Electric and a Non-Electric water purifier?

Water purifiers without a doubt have become a fundamental part of our daily lives for clean and healthy drinking water. There are mainly two types of water purifiers in the market. Namely, electric water purifiers and non-electric water purifiers. These two types, as the names suggest, vary in their usage of electricity. But at the same time, also differ on several other factors like – water purification process, kinds of impurities removed, features and aesthetics, maintenance cost and so forth.

Electric Water Purifiers vs Non-Electric Water Purifiers


Electric water purifiers
mainly comprise of Reverse osmosis (RO), Ultraviolet (UV) and a combination of both - RO + UV water purifiers. These are more sophisticated in their technology and use various types of water filters to provide pure and clean drinking water. They have better water purification efficiency and come with several other attractive features.

Non-electric water purifiers are gravity-based and do not require electricity to function and purify water. They use filters like - Sediment filter, carbon filter, and microfilters, which are arranged one after the other vertically to remove different kinds of impurities and purify water. They use the natural water pressure to create a pull as water flows through these filters.



Let’s understand the key differences between the two.


• Stages of Water Purification

    Electric: Advanced 6 or 7 stages of purification
An RO water purifier with its advanced stages of purification, provides clean drinking water to you and your family. These purifiers can remove high TDS, chemicals, and heavy metals which cannot be removed using a UV or a non-electric water purifier. A typical RO water purifier includes - Sediment Filter, RO Membrane, Pre-RO Carbon filter, UV Chamber, Mesh Filter, Post RO Carbon Filter, and Micro Filter.
A UV purifier on the other hand comes with around 4 stages of water purification, designed to use electricity to kill microorganisms like protozoa, viruses, and bacteria.

   Non-Electric: 3-4 stages of purification
These come with a much simpler purification process. Water is poured in the device from the top and with the gravitational pull it passes through sediment, carbon and micro filters arranged one below the other.

Purification of Different Sources of Water

    Electric: Suitable for all sources of water

 In India, one of the most common sources of water is borewell or ground water. The TDS levels of borewell water are usually higher as compared to other sources like tank or municipal. In cases where TDS levels are more than 300 ppm, RO water purifiers are the best solution as only RO technology can get rid of high levels of TDS.

    Non-Electric: Suitable for only Municipal water

 Non-electric water purifiers should be preferred when the TDS levels are under consumable limits and thus water is comparatively less harmful for consumption. Non-electric water purification systems can remove microbes like bacteria and pesticides along with bad odor but are incapable of removing heavy metals that are harmful if consumed in the long run.

• Taste of water

    Electric: Enhances taste to make it sweeter

   Water collected directly from lakes or rivers is salty mainly because of the presence of minerals, salts and other organic compounds. RO water purification technology is best at treating water with hardness and turning it into soft, sweet tasting       consumable water.

    Non-Electric: Doesn’t improve the taste of water

  The activated carbon filter present in non-electric water purifiers, remove contaminants and chlorine that can impact and sometime change the taste and color of water but doesn’t sweeten it.

• Filter replacement

    Electric:  Needs replacement once in a year.

     Filter replacement in electric water purifiers should be occasional. RO and UV purifiers are built to require minimum maintenance.

    Non-Electric: Needs replacement every 2-3 months

    Non-electric filters need replacement every 3 months as they can get clogged easily. The frequent filter replacement can be inconvenient as this requires regular maintenance.

• Features and aesthetics

    Electric: Advanced features and aesthetics

  Electric water purifiers come with superior aesthetics and newer designs that make your kitchen look more attractive. Pureit RO water purifiers not only offer beautiful looking purifiers but also are laden with best-in-class features like Advanced Filter Alerts, Water Level Indicators, Digital Purity Indicators etc.

    Non-Electric: Basic features and aesthetics
Non-electrical water purifiers require space in the kitchen as most of them are table-top devices. They have only basic purification features and designs

.

• Maintenance cost

    Electric: Slightly higher maintenance cost
As an RO water purifier has a more efficient purification technology, it’s slightly expensive to maintain. The average cost of RO water purification comes to 50 paise per litre. But a UV water purifier on the other hand comes with the lowest maintenance cost at only 30 paise per litre.

    Non-Electric: Lower maintenance cost
Non-electric water purifiers have a low maintenance cost at 35 paise per litre.

Device cleaning

    Electric: Less frequent

    Electric water purifier devices are built to require occasional cleaning that is only once in 12- 14 months. 

    Non-Electric: More frequent

    Non-electric water purifiers require very frequent cleaning that is every 3 – 4 months.

In conclusion, each water purifier comes with its own features and benefits and thus should be assessed basis individual requirement. In places where there is already an effective water filtration system, a non-electric water purifier could do the purification job. Whereas if the TDS levels in the water are excessive or water seems to be more contaminated, electric water purification should be preferred.

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