During an inspection, I came across a tubing material for an in floor hot water heating installation that I was curious about. I couldn't get close enough to touch it, so I was not 100% sure what it was. The boiler was installed a year ago, but the installation had been there for a while. It was made by Shaw Flexible Tubes LTd, but no date. I think it was polyethylene, not pex. As you can see in the pic, there was serious corrosion. Is anyone familiar with what it could be based on the pic? Click to Enlarge 65.23 KB