-
Cut
the barrel and joint sleeves to the dimensions indicated in the
sections (Material required & dimensions)
-
Before
lowering the pipe into the trench, raise it up and slip the pleated
sleeving along the barrel. See Fig.1
-
With
the pipe supported on two wooden blocks, spread the sleeving along
the whole length of the barrel and fit it snugly to the latter by
folding it over at the top of the pipe. The Sleeving must not
billow/ or bulge. See Fig.2
-
The
sleeving must fit in the pipes as snugly as possible (importance of
the fold and ties).
-
The
barrel and joint sleeve overlaps must provide total continuity of
protection.
-
The
fold must always be made at the top of the pipes, to limit the risk
of damage during backfilling. See Fig.3
-
Fasten
the fold down with tape.
-
Fasten
the sleeve ends to the barrel by wrapping adhesive tape around the
circumference, overlapping the barrel sleeving junction, to give a
watertight overwrap.
-
Apply
intermediate fastening (plastic coated steel wire) every 1.5m.
-
Slip
on the joint sleeve. See Fig.4
