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Does Onix Tubing oxygen barrier work?
Has anyone had trouble with ferrous parts rusting when using Onix radiant tubing? I am repiping our system that has staple up Onix and finding the pumps are rusting pretty severely after just 3 years and there is lots of rust slime coating all the pipes. I've had plumbers blame the Onix, saying it doesn't have an oxygen barrier. But Watts Radiant clearly is marketing a product with sophisticated oxygen barrier. The tubing is only a few years old, so not the old school rubber which definitely had problems.