@TOMBIG, Steam is extremely corrosive,Mark Hunt is correct.I am a state certified steam engineer and pending on metropolis h2o, the water is acidic and we incorporate neutralizing amines into the steam to neutralize condensate.We also add caustic to the town drinking water to produce a balance for the drinking water. https://boiler-repair43197.vidublog.com/30090422/the-radiator-repair-diaries