A-frame level vs bunyip level vs laser level
A-frame and Bunyip levels are simple tools for measuring slope, finding contour lines on a property and determining the placement of water-harvesting earthworks or swales. Ditches on contour, or swales, on a slope reduce erosion, increase water infiltration, make water more available to downslope plants, and therefore facilitate reclamation of degraded hillsides. An A-frame is literally a frame in the shape of an “A” which includes a weight that hangs freely and indicates slope by its tilt. It is easy to make, and easy to use but is laborious for large pieces of land. A bunyip, or water level, consists of a long clear vinyl tube filled with water, with each end attached to a tall stake that is marked in inches or centimeters. The tube can be many feet long and this simple, hand made tool can be used to measure slope on larger pieces of land. A laser level uses a laser to measure slope, is very accurate at large distances, and can be used on any size project.