The liquid reservoir includes a liquid reservoir pump that is in {HEAD ~ fluid communication} with {TAIL ~ the drain} at a reservoir pump inlet 
The liquid reservoir includes a liquid reservoir pump that is in { HEAD ~ fluid communication } with { TAIL ~ the drain } at a reservoir pump inlet
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH