{HEAD ~ A downwardly extending non linear pathway} from the drainage openings to {TAIL ~ the exterior} of the diverter prevents water from entering the wall interior through the channels 
to
{ HEAD ~ A downwardly extending non linear pathway } from the drainage openings to { TAIL ~ the exterior } of the diverter prevents water from entering the wall interior through the channels
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH