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Comparing Water Quality B/W RO Water Purifier, Gravity Water Purifier And Earthen Pots

Nov 16, 2018

Earthen Pots - For Water Storage

The Indian sub-continent has been using earthen pots for water storage since times immemorial. The Matka is a common sight, even in urban households.

A Matka is known for keeping the water cool during hot summer weather and generally alum is used to purify the water kept in these pots. However, with the rising challenges of urban and rural water pollution, we need to revisit the relevance of these age-old methods of water storage and have a look at the technological advancements that enable better health and nutrition.

In this post, we have a look at the quality of water stored in a traditional earthen pot, a gravity based water purifier from Livpure, and an RO water purifier, also from Livpure.

Water Quality in a Clay Pot

Traditionally, the water stored in a clay / earthen pot was fit for drinking because the overall water quality was good in those times. Our examination of water from a clay pot supports this theory.

While low TDS water stored in a clay pot is fit for drinking and cooking, it becomes a matter of concern if the water has hard water elements and arsenic compounds. Add to that the vulnerability of clay pot water to pathogens which raises a genuine health concern for the users.

Simply put, the clay pot has some natural cooling and mineralising properties to be sure, but it has no water filtration mechanism at all and thus the quality of water depends entirely on the source of that water. If the source is polluted, the water in a clay pot is going to be polluted.

Water Quality in a Gravity-based Water Purifier

A gravity based water purifier operates without electricity. It uses a simple water filtration technique, wherein the supply water is stored in an upper compartment and the filtered water is stored in a lower compartment. Between these two compartments, there are two filters, an ultra-fine filters to remove in-organic compounds and an activated carbon filter to remove organic impurities.

The limitation of the ultra-fine filter is that it cannot remove microscopic pollutants. However, in areas where underground water has acceptable levels of TDS, a gravity-based water purifier is more than adequate for getting clean drinking and cooking water.

Water Quality in a RO Water Purifier

RO water purifiers are the most popular water purifiers in the world today. These water purifiers use a technique called reverse osmosis to filter the minutest of impurities from a water supply. The osmotic membrane has pores which are invisible to the human eye. Water molecules are forced through this membrane to remove any and all impurities. RO water purifiers are best for protection from diseases and infections in areas where TDS levels are very high.

Livpure has also added a mineraliser to make the RO water taste better and have nutritional value for users.

In our tests, RO water purifiers come out on top in terms of providing clean drinking water due to their advanced technology and multi-stage filtration process.

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