English (GB)
8
4.4 Connecting the pipes
Compact the backfill around the pit up to the lower part of a pipe
connection, before connecting the pipe.
Before connecting the pipes, check the following:
• The pipes and the gaskets must be clean.
• The inlet pipe must be properly aligned with the pipe
connection.
Holes for inlet pipe, electrical connection and venting are to be
drilled on site.
Mark the pit where the inlet is to be. Drill the marked spot with a
hole saw. Remove all burrs from the hole. The hole saw is
available as an accessory. See the table below.
4.4.1 PS.R.05 - PS.R.10
Fig. 9
Drilling the inlet hole,
∅
500-1200
4.4.2 PS.R.17
Drilling from the outside
If the hole diameter is bigger than 150 mm or the hole is to be
drilled into a rib, drill in the centre of a rib. See fig.
.
Fig. 10
Drilling from the outside
Drilling from the inside
Due to the circular pit shape, the pilot drill must extend beyond
the cutting edge of the hole saw by at least 23 mm. The position
of the hole is not an issue. See fig.
.
Fig. 11
Drilling from the inside
We recommend that you provide the pit with a vent
pipe (accessory).
Place inlet and outlet pipe connections in accordance
with local regulations.
S
leev
e
Pi
pe
dia
m
eter
Product
number
Hol
e
sa
w
[mm]
Borehole
tole
ranc
e
[mm]
Product
number
LM50/40
40
96230763
51
- 2/+ 1
96571532
LM50/50
50
96230753
60
- 2/+ 1
96571533
LM50/63
63
96571523
75
- 2/+ 1
96571534
LM50/75
75
96571527
86
- 2/+ 1
96571535
LM50/90
90
96571528
102
- 2/+ 1
96571536
L965/110
110
91716040
127
- 0/+ 2
91713756
L965/160
160
91713754
177
- 0/+ 2
91713755
LM100/
200
200
91712032
212
- 2/+ 1
91712025
Pilot drill
91712026
T
M
02
93
42
24
04
We recommend that
you drill the inlet
hole in the
cylindrical, smooth
part.
The hole saw must have a cup depth of minimum 90
mm.
The inlet hole must not be drilled in the pit close to
pipes, float switches or other parts of the pit
installation.
TM
04
9
441
42
10
TM
04
9
573
46
10
