Water source: like surface water, underground water, raining water, tap water etc. non-chemical polluting water source.PH:6.5-7.5, temperature: 5-45 C, Turbidity< 15 NTU The core unit adopts advanced hollow fiber UF membrane, which can effectively remove bacteria, colloid, rust, suspended solids, sediment, larger molecular organics, etc, thus achieves the water filtration.