{HEAD ~ The apparatus} 1 wherein {TAIL ~ the liquid source} is a return to the reservoir and wherein the return to the reservoir is in fluid communication with a reservoir pump outlet 
wherein
{ HEAD ~ The apparatus } 1 wherein { TAIL ~ the liquid source } is a return to the reservoir and wherein the return to the reservoir is in fluid communication with a reservoir pump outlet
HEAD HEAD HEAD HEAD HEAD HEAD OTH 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 OTH OTH OTH OTH