Pure water machine is a kind of multilevel filter is adopted to improve the water quality purification of water purification equipment, processing more use of not adding chemical filtration, adsorption, physical methods such as reverse osmosis.

Reverse osmosis:  raw water→ pressure pump  →Multi-media filter →activated carbon filter  → water softener →
precision filter →reverse osmosis machine → intermediate tank → intermediate pump → EDI system → purification tank → pure water pump → ultraviolet disinfection  →  micropore filter→ water points. . .

Two-stage reverse osmosis is the first stage reverse osmosis permeate adjusted PH value, and then by a second stage high pressure is pumped into the second stage reverse osmosis system, whereby water obtained through the process.