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Frequently Asked Questions
FAQs / / What’s the difference between reverse osmosis (RO) and deionized (DI) water?

What’s the difference between reverse osmosis (RO) and deionized (DI) water?

Reverse osmosis removes most dissolved minerals by pushing water through a semipermeable membrane, while deionization removes charged ions through ion exchange to achieve higher purity levels. Carbon steel steam generators can run on RO water, but stainless steel models need DI water, because anything less than pure could corrode the metal.

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