Secondly, the process of reverse osmosis strips the water of significant minerals. A good health practise is not considered to be drinking ‘soft’ water that is free of minerals. However, if you are taking a lot of extra supplements of vitamins and minerals, this may not be of much concern. why to use an ro water filter has some nice tips on this.
The real benefit of a reverse osmosis water filter is that, with only the occasional cleaning of the membrane, it requires very little maintenance. A very common filtering system is Activated Carbon, also referred to as activated charcoal. Through binding contaminants to its surface, active carbon operates. Because of its small size, the surface area of active carbon is massive, since it contains millions of small nooks and crannies. The binding process eventually ‘fills’ the surface, however, and the filters will need to be changed. The primary benefit of activated carbon is that it is readily available, that it can be stored in a small cartridge, that it does not waste water, and that it is relatively cheap. The main drawbacks are that the filters need to be modified on a regular basis, and can become mouldy if improperly maintained. In particular, shower filters that are exposed to a great deal of hot water can break down the active carbon filter and become useless for filtration, or worse, a mould breeding ground. Proper use and regular filter replacement will prevent the occurrence of this problem. The fossilised remains of ancient sea life are made up of ceramic filters. They are an excellent filter for larger sediments and most bacteria and viruses, while still enabling the passage of minerals. In outdoor filter systems, ceramic filters are often used, where the primary concern is filtering out pathogens and not chemicals. Ceramic filters do not filter out chlorine and are generally combined with another form of filter to achieve that result when used in a home filter system. There are several other types of filters beyond the main three that the investigating homeowner may come across: