The first stage: PP cotton: preliminary filter raw water, removal of coarse particulate impurities, sludge, colloids, suspended substances.
The second stage: granular activated carbon: adsorption odor, color, chlorine, organics, heavy metals and other parts of
Third Grade: PP cotton: deep purification, and further remove impurities, protecting UF
Fourth grade: Rear carbon: to improve the taste after.
Fifth Grade: UF: remove bacteria, rust, colloid and organic matter and other impurities in the water
     After a period of use ultrafiltration, trapped down bacteria, rust, colloid, suspended solids, organic molecules and other harmful substances will attach to the inner surface of the ultrafiltration membrane, ultrafiltration membrane so that water production decreased, especially water quality pollution, the more likely to cause clogging of the ultrafiltration membrane, ultrafiltration membrane regularly rinse water production can be effectively restored film.
     Ultrafiltration After the bundled filaments casting process is made as shown below ultra filter, the filter housing by the ABS, epoxy head casing at both ends of the wire bundles and ultrafiltration of three parts. Epoxy head filled the gap between the film silk and silk membrane, forming liquid and liquid through the isolation between the first liquid into the ultrafiltration membrane pores, after ultrafiltration permeate become prevent the liquid directly, without filtering into the permeate.