Is Reverse Osmosis Water Corrosive

Reverse osmosis (RO) permeate is aggressive, corrosive since it is soft, low alkalinity water with slightly acidic pH. Unless properly post-treated, finished water from RO facilities can cause corrosion to downstream fixtures and piping including the distribution system.

Does RO water corrode stainless steel?

resistant to RO water. Under shut down conditions, 304 SS is free from crevice effect in RO water. In general, the phosphate dosing annuls the effect of crevices in carbon steel, ferritic and austenitic steels in RO Water.

Will RO water eat aluminum?

However, although the water is very clean, it gets very aggressive and corrodes Steel Pipes, Aluminium coolers, Coffee machines, taps, valve seats, Expensive Variable Frequency Drives (fresh water cooled) even in systems like engine cooling water with corrosion inhibitor mixed into it, it eats up a aluminium radiator …