Guangzhou health beverage expenses

(1)① According to the characteristics of the above purification materials, quartz sand is best placed in the B layer.

② The function of the second layer of gauze is to isolate layer A and layer B..

③ Calcium ions and magnesium ions in water cannot be removed by this device, so hard water cannot be converted into soft water.

(2)① After connecting the equipment, check the air tightness of the equipment first.

Adding zeolite can prevent the liquid from boiling.