skyking1
Senior Member
We just got the dual slope GL422N, and I have had a couple of jobs to check it out.
It has been good on battery life.
The target and remote control both take regular AA batteries, but also good. I have not changed batteries in the target yet.
It took a while to figure out the functions as the included instructions are just trash.
My biggest single takeaway is the dual slope and how to use it on plumbing jobs.
It will do the single mainline slope and the branches to one side without moving the laser or the grade rod, which seems natural and helpful.
What I figured out is, if you set the laser directly in line with the main trench, it will do the other branches rather easily as well if the slopes are the same.
You simply turn it off, rotate the laser 90 degrees and line back up with the trench. Turn it on and it will re-level and go. Now the branch slope becomes the main trench slope, and vice versa but now to the other side of the main trench.
If you do it right, you won't need to reset the grade rod either. That was not so intuitive but it works and saves a whole lot of time.
To speed this switchover up, use a regular level to set up the tripod as level as practical. This speeds up the laser's automatic leveling when you rotate it.
Now we can march down a whole plumbing job without resetting the grade rod each time you dig a branch.
It has been good on battery life.
The target and remote control both take regular AA batteries, but also good. I have not changed batteries in the target yet.
It took a while to figure out the functions as the included instructions are just trash.
My biggest single takeaway is the dual slope and how to use it on plumbing jobs.
It will do the single mainline slope and the branches to one side without moving the laser or the grade rod, which seems natural and helpful.
What I figured out is, if you set the laser directly in line with the main trench, it will do the other branches rather easily as well if the slopes are the same.
You simply turn it off, rotate the laser 90 degrees and line back up with the trench. Turn it on and it will re-level and go. Now the branch slope becomes the main trench slope, and vice versa but now to the other side of the main trench.
If you do it right, you won't need to reset the grade rod either. That was not so intuitive but it works and saves a whole lot of time.
To speed this switchover up, use a regular level to set up the tripod as level as practical. This speeds up the laser's automatic leveling when you rotate it.
Now we can march down a whole plumbing job without resetting the grade rod each time you dig a branch.