a third pass thru divider having at least one hole at the bottom, spaced away from the second pass thru divider and in {HEAD ~ the interior} of {TAIL ~ the main box}; and 
a third pass thru divider having at least one hole at the bottom , spaced away from the second pass thru divider and in { HEAD ~ the interior } of { TAIL ~ the main box } ; and
OTH OTH OTH OTH 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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH