Water Source MANXIUTE water is from Qiandao Lake. The water source is national 1st water source reserve and is also called “Best Water in the World”, which is 34m deep with 7m transparency. The water body contents equally K, Ca, Na, Magnasium and other essential microelements and mineral substances for human body. Barrel 　　Specific concavo convex PC barrel at food grade is adopted for MANXIUTE water which is transparent and lustrous, and has the sign of “Water Source” and anti-counterfeiting label. PC (polycarbonate) is offered by GE, U.S.A. and Bayer, German.