1. Water production is too slow: whether the filter element or reverse osmosis membrane of the prefilter is blocked;
　　2. Making water too fast (less than an hour to make a full bucket) : reverse osmosis membrane damage;
　　3. Poor taste: the life of post activated carbon filter element has reached; RO membrane removal rate is less than 75% : reverse osmosis membrane life has to.
　　The film removal rate can be calculated as follows: RO film removal rate =(raw water TDS value - pure water TDS value)*100%/ raw water TDS value
　　This article is organized by dongguan oneness filtration technology co., LTD