Preferably, a short timing period device is incorporated electrically intermediate the time clock and {TAIL ~ the pump} to permit control of each dosage cycle to a matter of {HEAD ~ a predetermined number} of seconds even if the time clock is incapable of such fine control 
Preferably , a short timing period device is incorporated electrically intermediate the time clock and { TAIL ~ the pump } to permit control of each dosage cycle to a matter of { HEAD ~ a predetermined number } of seconds even if the time clock is incapable of such fine control
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH