a positive displacement pump located below said containers and having an inlet and an outlet, {HEAD ~ the outlet} being connected to {TAIL ~ a nozzle}; and 
connected to
a positive displacement pump located below said containers and having an inlet and an outlet , { HEAD ~ the outlet } being connected to { TAIL ~ a nozzle } ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH