{HEAD ~ Base port} 10 may be connected to a vacuum to facilitate {TAIL ~ fluid pull} through 
{ HEAD ~ Base port } 10 may be connected to a vacuum to facilitate { TAIL ~ fluid pull } through
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH