The backfill sleeve 126 is approximately the same width as {TAIL ~ the trench} 114 which provides for consistent filling of {HEAD ~ the trench} 
The backfill sleeve 126 is approximately the same width as { TAIL ~ the trench } 114 which provides for consistent filling of { HEAD ~ the trench }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD