means coupling said pump inlet to said reservoir for establishing {TAIL ~ fluid communication therebetween} to thereby permit withdrawal of exterminating liquid from said {HEAD ~ reservoir} by said pump; and 
means coupling said pump inlet to said reservoir for establishing { TAIL ~ fluid communication therebetween } to thereby permit withdrawal of exterminating liquid from said { HEAD ~ reservoir } by said pump ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH