Water coming from the municipal supply can taste or smell bad and have disease-causing microorganisms in spite of being treated to remove a number of chemical and biological contaminants. This water can also ruin your electrical appliances that use water.

It is therefore useful to have point of use water purification systems at home. There are several options available in the market today. You could buy a pitcher filter that you can just put on the mouth of your pitcher for the occasional need of filtered water. You could have faucet-mounted filters, under the sink filters or whole house filters that filter the water from the source before it enters your plumbing.

Whole house water filters are practical only if the water source is not reliable. This means you will need it only if you have your own bore well and are not supplied by the municipality. Also different filters remove different things from water and you could suitably pick one for drinking water and another for the shower.

There are several methods of cleaning water and some of these are using reverse osmosis, UV treatment, granular activated carbon filtering, distillation, direct contact membrane distillation and gas hydrate crystal centrifugation. They each remove only certain kinds of contaminants and are therefore used depending on what kinds of substances are present in the water source. RO, UV and activated carbon filters are commonly used in home water purification.

Reverse osmosis is the use of pressure to move a solution against its concentration gradient across a semi-permeable membrane. This is probably the most effective form of water treatment because it eliminates several chemicals and biological agents. Improper maintenance of the filter may cause algal growth on.

UV purifications systems remove only biological agents and not chemicals. They have a UV light-producing bulb. UV light can be obstructed with sediments and thus pre-filters are also used in these systems. They are very good at getting rid of bacteria, viruses, molds and algae.

Activated carbon that adsorbs on its surface many chemicals is the basis of granular activated carbon filtering, which is common in faucet mounted filters and shower heads. The porous carbon has also silver nanoparticles these days to eliminate bacterial growth.

Vaporization and condensation is the basis of distillation, which is not very popular in homes, as it only removes contaminants that have a boiling point very different from water. For large-scale purification and desalination, gas hydride methods and direct contact membrane distillation are used.

Scott Rodgers is a knowledgeed expert who has been authoring on plumbing for a long time now. His knowledge has given motivation to a host of workers, ranging from Richmond Plumbers (Need one? click here!) to Eugene Plumbers (Need one? click here!).