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