Springfield, Mo.-based United Poly Systems LLC is extruding a new line of HDPE pipe in the same sizes as traditional copper tubes and iron pipes for a range of applications, particularly water uses.

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Q: Several months ago, you wrote about which plumbing pipe might be better for water lines, copper or PEX. You briefly mentioned a new tool that eliminates the need for soldering copper. I would like ...

Q. We would like to insulate our copper water piping to and from our gas furnace. My husband would like to use fiberglass insulation, since he can wrap it around the piping and make it fit. He is ...