How to Select a Water Purifier for Home Use?

While you may come across many water purifiers online, the below- mentioned parameters will help you decide which one is the best water purifier for home use.

Different types of water purifiers – which one is suitable for your water?

Is your water surface water (from rivers and lakes) which has been supplied by the municipality or is it groundwater (from borewells, supplied by tankers)?

If it is surface water, supplied by the municipal corporation, chances are that the TDS (dissolved impurities) are low and you need to only protect yourself from microbiological impurities like bacteria and viruses.However, if your water is groundwater supplied by tankers, there may be a higher level of dissolved impurities, altering the taste of the water, and at higher levels may affect your long term health.

As a thumb rule, if you get groundwater, check the TDS with a simple TDS meter. If your TDS is above 500 ppm, then choosing an RO water purifier may be beneficial. If the TDS is lower than 500 ppm, then a well-designed UV purifier will be effective in purifying the water.

Most companies selling water purifiers do this simple TDS test. It is important to note that using a RO water purifier where TDS levels are low, say under 200 ppm, may be detrimental to your health in the long run, as the water is stripped of essential minerals and salts.

There is also substantial water wastage in a RO water purifier (up to 80%), so unnecessary usage is wastage of a valuable resource.

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