It is a stage that consists of three basic groups:
1- Magnetic filter
2- Calcite filter
3- Bio gentic filter
It is the stage that removes the surface tension of water, neutralizes the water pH and prevents the growth of bacteria, and this improves the metabolism of the cell in the body, improve blood circulation, raise the level of oxygen in the blood, control the level of cholesterol in the blood and reduce the level of acidity in the body, which improves general health.