RO Water Purifier
RO water filters use Reverse osmosis technique in which water is passed under pressure through a semi-permeable membrane to Remove Heavy metals like arsenic, fluorides, nitrates, mercury and other dissolved impure salts. RO purifiers are mostly used in houses and companies.
Pros
1. Water with high TDS value like 500 – 2000ppm
2. Salty water or if the water source is Hard water or borewell water.
3. The range starts from Rs. 5000 – 12000, depending upon technology membranes and storage capacity
Cons
1. RO purifiers require electricity to clean water.
2. These waste a lot of water during the purification process.
3. RO cannot kill germs and various other bacteria.
4. Maintenance can be costly.