ADS Environmental Services FlowAlert QR 775011 A2 - Manual (Page 163)

Monitor Installation 6-11
Note: ADS strongly recommends attaching a security line
to the monitor before lowering it into the manhole to
prevent the monitor from accidentally dropping down the
manhole during installation.
13. Slide the bracket against the inner nut and washer, and tighten
and secure the outer nut against the bracket.
14. Neatly coil and secure the excess sensor and telephone cables
in the manhole to simplify future monitor service activities.
Secure the cables to plastic anchors or ¼-inch x 2 ¼-inch
anchor bolts using 14-inch cable ties.
Note: Be careful to avoid damaging the sensor cables
during installation activities. Even small pinholes in the
cable can cause a sensor to malfunction or fail.