"Paul Kelly" wrote in message
...

nightjar wrote in message
. ..


One possibility might be inspection cover liners. You need to look in
the
below-ground drainage catalogue in your local builders' merchants. They
are
used to line the hole between an inspection chamber and the cover above.


completely off topic aside: What's the difference between an inspection
cover and a manhole cover - and why?

pk



Don't know for sure. Could be the same thing or could be that an inspection
cover is to allow visual access and a manhole cover is to allow someone to
climb in or out?

Ian