ADS Environmental Services FlowAlert QR 775011 A2 - Manual (Page 161)

Monitor Installation 6-9
Binding the nuts together with the washer in between
8. Install the stud into the tapped hole using the outer nut to
engage the wrench. Continue turning the nut clockwise until
the stud is seated at least ¾ inch deep in the hole.
Installing the stud into the hole in the manhole rim
9. Separate the nuts, and turn the inner nut until it is flush against
the rim.
10. Slide the washer against the inner nut, and turn the outer nut
toward the edge of the stud.