Preferably, a short timing period device is incorporated electrically intermediate the time clock and the pump to permit control of {TAIL ~ each dosage cycle} to {HEAD ~ a matter} of 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 the pump to permit control of { TAIL ~ each dosage cycle } to { HEAD ~ a matter } of 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 OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH