When the valve is closed, {HEAD ~ current} flows from electrode 240 to electrode 242 through {TAIL ~ strip} 245 
flows through
When the valve is closed , { HEAD ~ current } flows from electrode 240 to electrode 242 through { TAIL ~ strip } 245
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH