If you are considering lines of installing a water purifying system for your national requirements of quality water for drinking and cooking purposes, you would not find a better understanding than the reverse osmosis system, which provides secure and tasty water with no odor. For our everyday requirements, we rely on public or private sources of water. Though water treatment plants installed by civic bodies clean the water of particulates, chemicals are inserted therein for killing germs and viruses. These additives are dangerous for people also. The downside is that the treatment plants cannot take out dead germs, chemicals and the particles of industrial wastes, the quantities of which are slowly going up in natural sources of water. Ultimately these get delivered to us, thus exposing us to the dangers of diseases.
Even having private wells does not help, since they are also polluted with the very same chemicals, some of which have higher concentrations. Excessive use of pesticides and herbicides from farms contaminate wells with viruses and bacteria that are poisonous. The pressure where the water is delivered by the public water distribution systems or wells forces molecules of water through a partially porous membrane which leaves compounds behind, and then they get washed out. The pores on the membranes employed in the reverse osmosis system for home have a size of 0.0005 microns, only a bit bigger than the size of water molecules. When water under pressure is forced through such sized pores, all of the pollutants are left behind and pure water is fed into a storage tank.
Reverse osmosis systems made for domestic use can effectively clean the water contaminated with dissolved solids and minerals, heavy metals such as lead, bacteria, chlorine, chemicals, pesticides, herbicides, viruses and other harmful industrial contaminants. The installation of a reverse osmosis system for the whole household will be an extremely costly proposition. So, it is more practical to prepare a system exclusively for water necessary for the household drinking and cooking. This more compact system could be installed under or over the counter and another tap is fixed for providing it water out of your storage tank.
A reverse osmosis system for national applications has a collection of filters. The system has one filter before the RO membrane. Then, it is a filter with activated carbon for filtering incoming water. The expression activated-carbon suggests that the carbon filter is given a chemical treatment to improve its absorption characteristics and filtration capacity. Because of this, water passing through this stage becomes filtered further. Water coming from RO filter becomes stored in an integrated storage tank. When you open the tap of the RO filter, purified water in the storage tank is passed through an extra carbon filter, referred to as the polish filter or the pole filter. This filter further takes away any residual odors or tastes, providing pure, clean and tasty water with no chemicals or other pollutants.