means for releasably sealing the inlet end of {TAIL ~ the nozzle} to the front end of the tubular member with said openings in {HEAD ~ communication} 
means for releasably sealing the inlet end of { TAIL ~ the nozzle } to the front end of the tubular member with said openings in { HEAD ~ communication }
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD