Divergent methods including the reverse osmosis process are used for purifying drinking water at home or workplace by the people across the globe.? With the advancement of technologies the purification has been extended to the bathing water as well. Normally the methods are used in water filters for the purpose.

Steps that are involved in purifying drinking water are –

· The devices use sediment filters to trap particles like rust and the calcium carbonate. Normally there are two sediment filters with small pores that help in trapping such particles that contaminate the water. However, one sediment filter can perform the task.

· For trapping the organic chemicals and chlorine components in the water an activated carbon filter is used.? It attacks and degrades the TFC reverse osmosis membranes. ?Such membrane filter is nothing but thing film composite membrane TFM or TFC. Sometimes a second carbon filters to capture the chemicals that cannot be removed by RO membrane.

· Sometimes the ultra violet ray lamps are also used for disinfecting any of the microbes escaping the filtration process by reverse osmosis membrane.

Sometimes the manufacturers omit the carbon pre-filter and use cellulose triacetate membrane of CTA.? This membrane rots if not protected by the chlorinated water.? On the other hand the TFC membrane breaks down when influenced by chlorine.? Normally I the CTA process, a carbon post-filter am required for removing the chlorine from the water that is finally produced in purified form free of all contaminations.