Additionally, from your first and second level operating parameters, your second level reverse osmosis equipment performance manufacturing is not good, therefore, it can be predicted that the second level reverse osmosis equipment configuration is extremely simple, not up to the effective protection of reverse osmosis membrane is damaged by degradation.
Of course, we can't rule out a rupture in the seal of the equipment to bring about the cause. However, the first seal problem, it is not possible to bring the second also have problems. Therefore, the possibility of seal damage is very small.
(Zhejiang Taizhou) Linhai City, Chumar desalination treatment equipment plant technology section