In one example, each steel pipe has a 12 inch inside diameter and {HEAD ~ a length} of {TAIL ~ 40 feet} , with the pipes being connected in series 
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In one example , each steel pipe has a 12 inch inside diameter and { HEAD ~ a length } of { TAIL ~ 40 feet } , with the pipes being connected in series
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH