What is your preferred method of connection?
Wet Lay-Up Joint
Can be used in any underground application, especially where high water table is an issue. This requires field laminations and is the most labor intensive connection method.
SMACNA Dry Fit Connection
Typically used where water table is not an issue. No field laminations required, similar in cost to the Wet Lay-up joint however less labor intensive.
Grip Seal Clamping Connection
No field laminations required, can be used where water table is an issue. Most expensive in cost however provides a significant reduction in installation labor.