See How Easy it is to Choose a Pure Water System

There are so many different types of pure water systems available in the market today. They are based on different types of water purification methods. How do you know which one is the best and which one provides the most value for your money? Let's examine some of the most used methods to purify water and see which one is most effective.

Reverse osmosis

A reverse osmosis pure water system works on a fairly simple process. It has a semi permeable membrane through which water is passed under pressure. The type of membrane has to be chosen carefully based on which contaminants are present and in what concentrations. Therefore your water needs to be tested initially to find out what pollutants are present. Other considerations include:

1. Membrane units are susceptible to damage by chlorine and/or bacterial growth.
2. Quantity of water produced, will it be enough to meet the household demands.
3. The units performance should be monitored to check for leaks.
4. The waste water produced can be up to 20 times the amount of water treated.

Point of use distillation

A point of use distillation based pure water system has a two step process. First, water is passed through a very hot coil and converted into water vapor. Then, it is passed through a cooling chamber where it is converted into water again. In this way most of the contaminants are left behind. However it has its limitations.

1. Although distillation is a highly effective process. The amount by which contaminants are reduced will vary, depending on the degree of contamination.

2. There are a number of pollutants that can convert into vapor, in doing so they can travel with the steam into the cooling chamber. These include certain pesticides, volatile organic compounds (VOCs) and radon.

3. Maintenance, distillation units depending on the quality of your water will require periodic cleaning

Chlorination

Now this is a method which has been in use for many decades. While chlorine is a good disinfectant, it does not have the ability to handle all the different types of contaminants present in water today. Chlorine, when it comes into contact with hot water tends to release chloroform, a cancer causing agent. This method with some minor modifications is used by municipal authorities to date.

Multi level filtration

Pure water systems with active carbon filters have a multi level filtration process. It involves active carbon filtration, ion exchange, and sub micron filtration. Water, when passed through all these filters, becomes free of contaminants.

Most importantly, the essential minerals present in water are not destroyed in multi level filtration. So, the water you get is both pure and healthy to drink. This is the reason why physicians suggest using a water purifier with multi level filtration.

These are the main types of pure water systems, you and your family need a supply of pure and healthy water to drink so chose wisely.

Autor: Derek Reeve

Derek Reeve runs an informational website that provides details of the best pure water systems. If you're serious about improving the quality of water you use visit water purification systems for home to find the most effective, efficient and affordable products available.

Added: January 2, 2009
Source: http://ezinearticles.com/