RO vs UV: Differences Between RO Water Purifier and UV Water Purifier

ro vs uv water purifier

Most of the homes in India have RO or UV water purifiers. But we rarely think about comparing the both while purchasing them. Each of them has some advantages and drawbacks as well. Let us see the differences so you can make an informed decision, the next time you are going to purchase a water purifier for your home.

Differences Between RO Water Purifier vs UV Water Purifier:

1. Check the Type of Water:

For water supply with high TDS, an RO purifier is needed as it can make the hard water drinkable by reducing the TDS. But when the TDS is low but has microbes in it, then a UV water purifier is better

2. Process Involved:

Water is forced through a semipermeable membrane in case of the reverse osmosis process. Water pressure is used for removing the contaminants. Since the hardness of water is eliminated, it gets a sweeter taste. But RO can’t kill microorganisms. To avoid this issue, you can go with purifiers having RO as well as for UF, UF, and other mechanisms.
In UV water purifiers, water passes through a chamber having a UV lamp that kills the harmful germs. This won’t reduce the TDS value of water. If your water supply already has a lower TDS value then this is a good option to consider.

3. Cost:

UV water purifiers are less expensive compared to RO water purifiers. Today there are RO+ UV water purifiers also to match your requirements. The water undergoes a 5-6 stage purification in such advanced purifiers.

4. Maintenance:

The water purifier needs to be serviced regularly for better performance. The external dust particles can also hinder its performance. After some time, the UV filters might also need to be replaced and so does the cartridge, and membrane in RO purifiers. So all these add to the maintenance cost. The good thing is that it has to be done after a certain period, which makes it cost-effective. If we compare the two models. the maintenance cost of RO water purifiers is more than the UV models.

5. Electricity Consumption:

The latest water purifiers come with an energy-saving feature that shuts off the device when not in use, hence saving a lot of power. More energy is needed in RO models for enhancing the water pressure to push the water through the membrane and eliminate the pollutants. But in the case of UV models, this is not needed, hence the electricity consumption is less.

6. Duration for Water Purification:

Water purification in UV models take less time compared to the RO as in the latter water passes through various stages.

7. Wastage of Water:

In UV models there is no wastewater eliminated but in RO models, a high TDS level results in draining out additional water. For every 1 lt, 650 ml of water is eliminated which can be used for watering the plants or doing other household chores.

Consumption of purified water is extremely important for a healthy body. So before you decide which model to stick to, get the water tested first. This will give you an idea about the TDS on the basis of which you can decide the best water purifier model for your home.

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