The final flow is useful for irrigation, {HEAD ~ washing} of {TAIL ~ structures} and automobiles, filling swimming pools, and for returning to toilet tanks for flushing purposes 
The final flow is useful for irrigation , { HEAD ~ washing } of { TAIL ~ structures } and automobiles , filling swimming pools , and for returning to toilet tanks for flushing purposes
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH