first conduit means connecting said {HEAD ~ second end} of said outer tube to said {TAIL ~ inlet} of said pump, 
to
first conduit means connecting said { HEAD ~ second end } of said outer tube to said { TAIL ~ inlet } of said pump ,
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH