I would ask an company that does commerical food-preparation facilities what they would use for hot-water washdown hoses - I assume that those are potable water grade. Maybe there's a potential fit to the desire for a flexible hose for potable hot water.
1979 Boler B1700RGH, pulled by 2004 Toyota Sienna LE 2WD
Information is good. Lack of information is not so good, but misinformation is much worse. Check facts, and apply common sense liberally.
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