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