In Technical Note 53, the Plastics Pipe Institute (PPI) lists an oxidation reduction potential (ORP) above 825mV as one of the factors that can accelerate chlorine degradation in PEX pipes. The ORP of ...

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Dr. David Wittenberg (right) and US Sen. Mazie Hirono at Maui Job Corps Center in Makawao. (Courtesy: David Wittenberg) After nearly three decades of helping Maui’s youth chart a better future ...

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