The purpose of UV light is for bacterial disinfection. However, on a Water Ionizer this is completely unnecessary for several reasons. If you have city (municipal) water then your water has already been disinfected through the use of chlorine. The carbon filter on the Water Ionizer will remove the chlorine. The UV light itself loses much of its effectiveness after the first six months of use and should be replaced often, which is of course an expensive proposition. Also, the glass tube that the water travels through in order that it can be exposed to the UV light develops a film on it after only a few months, which greatly lessens the effectiveness of the UV light on the water which passes through the tube.
1) Acidity and alkalinity
PH= the unit that indicates the density of acid and alkaline in water.
Water becomes acidic with increased oxalic acid, and alkaline with increased hydrogen ions. The measuring unit of acidity and alkalinity is indicated by PH values, e.g., PH 7 is considered neutral. Each numerical increment indicates 10 times more hydrogen ions or oxalic acid. For example, an increase of 1 in a PH table means 10 times more alkalinity. A decrease of 1 means 10 times more acidity.
2) Maintaining PH balance
The human body tends to maintain body fluid at PH7.3 according to the homeostasis function. The body tries to maintain the balance of each organ with alkaline body fluid of PH8.8 from the pancreases as the peak. However, consistent acidic constitution will result in lowering one\'s self-protection function in the body. Even though there is no visible sign of disease, alkaline water drinking will support the body with homeostasis functions. Alkaline water drinking also prevents geriatric disease because it defends the body against acidification of the physical constitution.