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| I would not be scared of the 160# poly best if you can lay it in a bed of sand and put a few inches over it, like others said heat the pipe and use all stainless clamps, this means the screw also, I would get the stainless fittings, not ashole loat more then brass andsome of the brass fittings now days do not look real robust. They put poly in for our geo loops at church 2" to the manifold then 3/4 or 1" inch for the loops , fused it, is supposed to last 200 years. | |
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