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