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