A pressure supply conduit is in communication with the dispensing conduits and both a first reservoir containing the first component, and {HEAD ~ a second reservoir} containing {TAIL ~ the second component} 
A pressure supply conduit is in communication with the dispensing conduits and both a first reservoir containing the first component , and { HEAD ~ a second reservoir } containing { TAIL ~ the second component }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL