said {HEAD ~ second timer} being adapted to respond to {TAIL ~ the establishment} of the commencement of each system on time to establish a period during which said pump is energized; and 
said { HEAD ~ second timer } being adapted to respond to { TAIL ~ the establishment } of the commencement of each system on time to establish a period during which said pump is energized ; and
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH