Posted: Tue May 13, 2014 10:59 am
Put a 100mm bung in, backfill with sand to within 100mm of the top, compact it down, and then cap with concrete floated to a neat and tidy finish.
That way, if you ever do need to recover the drain, it should be possible, which wouldn;t be the case if you filled all of it with concrete.
That way, if you ever do need to recover the drain, it should be possible, which wouldn;t be the case if you filled all of it with concrete.