I'm thinking about picking up a Bosch self leveling two axis line level at the end of the month. At least in this lateral sewer application it will give me accurate fall and prove that I laid straight. Are these (the two axis / dual plane) the most versatile for other applications? I might have fence post holes coming up after the sewer is fixed. Anyone have one?
Bosch GLL 3-50
Using the above laser level, since it emits from the bottom of the unit, can it get away with literally setting it on top of the high side of the pipe in the trench?
I've seen people talk about a "water level" consisting of 100 ft of 1/2 in clear tubing filled with water and window cleaner. How does that work? Are these actually used?