Quote:
Originally Posted by AC_Hacker
Other than the fact that PEX is not a thermoplastic (weldable) like HDPE is, it's great for Ground loops.
It might more expensive than PEX, but PEX actually starts out life as HDPE.
Regarding shark bite vs. barbs & rings, I have tried barbs and rings, both compression copper rings, and stainless steel 'clinch' rings. I think the clinch rings are superior in every way... even to corrosion.
-AC
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I agree. The stainless "pinch or cinch clamps" are much stronger than the copper crimp rings. If a pipe freezes, the stainless clamps are strong enough that the fitting will pop open and leak before the clamped end. With the copper rings are used, a lot of times the ends leak when the pipe thaws out. However, It's not a good idea to use the stainless clamps with plastic fittings. They tend to squeeze hard enough on the fittings to deform them.