{HEAD ~ The floating hard body tube cleaning elements} are removed from {TAIL ~ the water} flowing through a cooling tower distribution header and recovery from a modified distribution header vent 
are removed from
{ HEAD ~ The floating hard body tube cleaning elements } are removed from { TAIL ~ the water } flowing through a cooling tower distribution header and recovery from a modified distribution header vent
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH