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Drain hydronic system in advance of re-pipe ... emitter corrosion risk?
Hi all. Yea olde GB142 is being replaced and along with that most all of the basement piping. The system is going to be drained, most all the old piping moved/replaced, but the plan is to continue to use the cast baseboards and radiators. Question, with the system drained and open to the air, am I under any time pressure (besides that winter will return) to get the system re-piped and re-filled so as to avoid internal corrosion within the emitters?