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29 Sep 2000 at 1:09 am
#288081
SylvanLMP
Participant
Personally for under ground piping I use extra Heavy Cast iron especially in knowing there is traffic.
I just hate call backs so I use the better materials.
Remember materials are CHEAP Labor is the expensive part especially if the work has to be performed in only a few short years due to product failure.
PVC does not have the crushing strength of cast Iron piping (Tensile)