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