System has four strong spring anchors. These anchors will be installed in a 40mm to 50mm hole at four different heights with the help of installation tool. Each wire is attached with colored scale. Each scale is having 3 colors as green, yellow & red radium sticker and three scales are coming from each of bigger dia. scale as shown in figure. The reference head is having water diverting hole to drain the water.
After installation of all anchors the anchor pipe assembly with spring will be inserted into hole leaving all the scale hanging one in each. When the bed /roof separation is taking place the reading will change in respective scales.
