{HEAD ~ The coolant liquid} can be and in the preferred embodiment is {TAIL ~ the corrosive liquid} being pumped 
{ HEAD ~ The coolant liquid } can be and in the preferred embodiment is { TAIL ~ the corrosive liquid } being pumped
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH