Once you decided that you need to invest in a water purifier, you might have researched what kind of purifier to get. When you asked your friends and family, you might have received a gamut of responses that confused you further. With the market chock full of variants for water purifiers, it can be somewhat overwhelming to choose the right purifier for you and your family. But worry not, as we recommend a method in the madness.
Reverse Osmosis (RO) and UV (Ultraviolet) technologies are the most recommended amongst water purification technologies. So, let us explore whether either one or both of them are suitable for your specific needs.
Reverse osmosis uses a semi-permeable membrane with pores of diameter in the order of microns employed to eliminate more than 95% of the total dissolved solids present in the water supply. This ensures that the water dispensed from the RO unit is as clean as it can get.
Total dissolved solids include the organic and inorganic matter dissolved in the water supply. It includes microbial contaminants and heavy metals as well. So, using an RO water purifier can efficiently filter microbes and heavy metals, protecting you from any microbial contamination and the resulting water-borne diseases and even the accumulation of heavy metals that result in toxicity over the long term. Hard water with TDS up to 2000 ppm is purified using an RO purifier to produce soft and sweet water fit for consumption without the addition of any chemicals.
However, RO does not eliminate microbes completely from the water supply. That is where UV water technology comes of use. Usually the last stage of the water purification, in UV stage, water passes through a UV chamber fitted with a good quality UV lamp which emits radiation that deactivates the nucleic core of microbes, killing off their reproductive capacity. Without the addition of any chemicals, with the usage of UV technology, you can achieve up to 99% of microbial elimination.
Since RO water purifier uses a lot of water during every stage of the process, there is water wastage that is released through a reject stream. It is recommended that instead of wasting this water, you use it for cleaning your floor, vehicle, or gardening purposes.
Also, note that RO cannot tell the good minerals from the bad effluents when removing more than 95% of the total dissolved solids. So, often you end up losing the minerals you expect to consume through water by employing RO. This can be mitigated by using a TDS modulator or a mineralizer cartridge in the purification unit.
Note that by itself, UV does not remove the heavy metals, physical and chemical affluents, and other particulate matter present in the water. Hence, it does not reduce the TDS quotient of the water it purifies.
So, ideally, a combination of RO and UV technologies is recommended for the ultimate peace of mind. Though it does require electricity to function and doesn’t sound like an optimal solution for areas with fluctuating electricity, we recommend that you go for a RO + UV purifier with a large storage capacity so that your needs are covered.
If the turbidity of your water is high, UV may not be very effective as the radiation will not be uniformly spread across the microbes, so you have to factor that in as well.
The best product that combines RO and UV technologies along with mineralization is the Pureit Copper + mineral RO + UV + MF purifier. It uses a seven-stage purification process along with proprietary copper charge technology that infuses the water in the storage tank with 99.8% pure, fresh copper ions. Note that you can modulate this feature in the unit which uses a dual water dispensing system where you can turn off the Copper ions. What’s more, the unit comes with an auto-cleaning mechanism using which the copper is cleaned from time to time to eliminate the oxidative residue, thus ensuring that the copper is clean. The advanced alert system alerts you fifteen days before the unit stops working. If you miss that day, worry not, as the system has an auto shut-off feature that stops water from being dispensed if the filter is not replaced. The GermKill Kit is at the heart of the purifier and meets the stringent international norms of microbiologically safe drinking water. Pureit Copper+ Mineral RO+UV+MF has an indicator panel with SF/GKK indicator that will blink to prompt you to call the Pureit helpline to get the respective GKK changed, whenever the life of the Germkill Kit™ is near expiry
We believe that health is wealth and that you choose a water purifier based on your specific needs like your family size, your budget, the purification technology you think will work with your TDS needs, the steadiness of water, and electricity supply in your community, etc. The most highly-priced purifier is not necessarily the best for your needs by that token. If your water supply has high TDS, RO is a no-brainer. But whether you need UV also depends on the levels of microbial contamination in your water supply and the turbidity of water. So, treat the purchase of a water purifier like an investment that will ensure your optimal health and make the decision carefully.
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