{HEAD ~ second conduit} means connecting said inner tube to {TAIL ~ the bottom} of said detergent container, 
{ HEAD ~ second conduit } means connecting said inner tube to { TAIL ~ the bottom } of said detergent container ,
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH