User's Manual

16
Figure 27Figure 26
Figure 25Figure 24
Figure 23
Figure 21
Figure 22
Figure 20
16. To hold the end of the tunnel in position we recommend using small screws to secure the
tunnel to the external frame as shown in Figure 27.
17. We recommend putting some waterproof sealant between the tunnel and the external
frame to prevent water getting into the wall cavity.