Pure water machine - the third filter configuration requirements 【 3 m filter.

It is well known before the pure water machine level 3 is service for RO membrane filter, as the pretreatment of raw water, is to increase the service life of RO membrane. The RO membrane before a filter or 1 micron pp cotton filter is better. For three reasons:
a, can effectively prevent internal activated carbon powder into the RO membrane, protect the RO membrane, prolong its service life. Because before installing the activated carbon filter we wash and clean, also can have charcoal powder flow out, before the RO membrane with a 1 micron filter can have barrier effect, greatly reducing the possibility of man-made pollution of RO membrane.
2 to 1 micron, pp cotton filter precision, greater than 1 micron sediment particles, bacteria, scale and other harmful substances can roundly eliminate, lost in the first 5 micron filter effect when still can rise to protect the RO membrane, reduce the probability of RO membrane polluted.
3, if the third pole is activated carbon block compression, five three filter is activated carbon filter, activated carbon filter for repeated use, not only waste resources, also increase the cost and lose its proper role.
and the second level is generally activated carbon filter, pure water machine installation time need to wash, often cause a lot of blackwater, and easy to wipe clean. If activated carbon to compress the blackwater problem is solved, does not increase the burden of the third grade PP cotton.