» Introduction.

Our need for safe quality water is of course extremely important. Therefore it should be remembered that water can be a strong enemy, it can transmit disease by harboring pathogenic (disease causing) organisms so small they can not be seen by the naked eye. These microscopic organisms have not there scent nor can Welcome to the concerned group of individuals who want to know more about water problems and how to treat them. The initiative you show in taking this course proves that you're aware of the important need for water treatment and quality equipment to meet that need.

» Water is the most important substance in our life.

Our body is 60-80% WATER; WE NEED WATER FOR DRINKING, COOKING, BATHING AND CLEANING. Yet, as important as water is to all of us, usually we take it very much for granted.

Every time we turn on a water tap, we expect water to come flowing. Normally we take the safety of this water as much for granted as the water itself. This is understandable since most of the world population is presumably not supplied with safe water.

The quality of surface water constantly changes. Natural processes which affect water quality are the dissolving of minerals, sedimentation, and filtration aeration sunlight and of biochemical decomposition. Natural processes may tend to pollute and contaminate or to purify the water; however, the natural processes of purification are not consistent or reliable.they be tasted. The water in which they exist may to all appearances be sparking clear, when in reality in may be quite harmful. On the other hand, you will also learn that an unappealing muddy water source may be completely harmless.

Water problem throughout our countries are increasing every day. In cities with industry, using water for processing, there is often danger of chemical pollution. Although "safe" water is always of "first" concern, there are many other disagreeable (rather than harmful) pollutants which can affect a water supply.

In our countries approximately 80% disease are water born, unfortunately all our sources of water supply are highly contaminated and no where one can find safe drinking water.

» The Special Responsibility of the water system dealer.

Since water is one of the basic necessities of life, every one (consciously or subconsciously) wants and expects quality water. One doesn't really care about the equipment needed to provide it. One doesn't really want a well, a pump, a chlorinator, or a water filter. Instead, one wants someone to be responsible...An expert who can provide "good" water right from the tap.