When the increased pressure reaches a level above the pressure existing in the on board storage tanks on the vehicle being re fueled, {HEAD ~ the gas} in {TAIL ~ the bladder} will be squeezed out to the on board storage tank 
in
When the increased pressure reaches a level above the pressure existing in the on board storage tanks on the vehicle being re fueled , { HEAD ~ the gas } in { TAIL ~ the bladder } will be squeezed out to the on board storage tank
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH