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