ADS Environmental Services IETG FlowHawk QR 775012 A4 - Manual (Page 169)

Communication 4-51
installing the wireless antenna outside the enclosure. If
this requires drilling holes in the enclosure, take the
appropriate measures to seal the holes around the cable
once the antenna is installed to ensure protection for the
internal components against the elements.
7. Backfill the trench between the manhole and the location at
which the EMUX is installed, and restore the landscape as
necessary.