The nozzle is directed so as to discharge {TAIL ~ fluid} towards {HEAD ~ the discharge end} of the teat cup 
The nozzle is directed so as to discharge { TAIL ~ fluid } towards { HEAD ~ the discharge end } of the teat cup
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH