How To Select The Right Water Purifier For Home: A Buying Guide
A water purifier is a device that removes contaminants from water. It can also be called a water filter. These devices are very important in homes as they ensure that families drink clean and pure drinking water. The contaminants present in the groundwater or municipal water supply might be harmful to health, so purifying drinking water is very important.
If you are looking to buy a new best RO purifier, it is easy to get overwhelmed by the sheer number of brands and models that are available on the market. You can follow our easy-to-understand water purifier buying guide for the Indian market to narrow it down to the perfect water purifier that suits your needs and budget.
Which Water Purifier Should I Choose?
To choose the best RO water purifier, first, you need to know the source and quality (hardness, salinity, and TDS) of the available water before knowing what type of water purifier you need.
What does TDS mean and how can it affect your drinking water? Total Dissolved Solids (TDS) is a term used to describe the inorganic salts and small amounts of organic matter that are present in solution in water. The principal constituents in TDS are usually calcium, magnesium, sodium, and potassium cations; Chloride, Sulfate and Nitrate anions are commonly found. TDS is usually measured in milligrams or PPM (parts per million).
An RO water purifier is basically a machine that cleans water by using Reverse Osmosis. It removes dissolved salts, heavy metals and other impurities from tap water so as to provide you with fresh and healthy drinking water. You may need an RO purifier if your tap water has high TDS levels or if you live in an area where chemicals and other harmful particles contaminate the groundwater.
What are the types of water purifiers?
Water is an essential part of life. To ensure that you have quality water you need to have a water purifier installed. There are various types of water purifiers: RO (Reverse Osmosis), UF (Ultrafiltration), and UV (Ultraviolet). Some water purifiers use a combination of different technologies, including RO and UV. Based on the TDS level, you may need to choose the type of water purifier that suits your needs. For low TDS water (200 ppm or below), you might only need a UF or a UV water purifier or a combination of both.
RO Water Purifier: Advantages & Disadvantages
For pure water, the best RO purifier is certainly the one that uses RO technology. In an RO (Reverse Osmosis) water purifier, a pump pushes the water at high pressure into the RO chamber, which has a semipermeable membrane with pores with a size of approximately 0.0001 microns. When water molecules pass through to the other side, it leaves dissolved solids and impurities.
The RO membrane is the heart of the RO water purifier. It is responsible for removing all the dissolved salts, chemicals and other impurities from your drinking water. The best part about it is that you don’t have to replace it but replace its cartridges after every 6-9 months depending on the usage. Apart from RO membranes, there are other filtration elements for a better filtration process and to increase the life of the actual RO membrane. These filters are called ‘Stages’. In the RO machine, the filtration process starts with the first filter, which is called a Sediment Filter. The Sediment Filter removes all suspended impurities from the water
RO is the most effective water purification method, but it requires electricity, which means you have to pay bills every month in order to use it. Also, an RO water purifier tends to waste a lot of water and needs constant maintenance as well. Several brands have recently started offering water purifiers with a separate tank to store discharged water that could be used for a variety of purposes like washing clothes or utensils or wiping the floor.