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