In order to obtain a more even distribution of the plaster, vigorous oscillatory movements from side to side are usually made. Without taking it away from the lighthouses. Difficult sections are again leveled with a trowel and finished with a rule.
To check the evenness of the walls, you can use the rule and look at the gap, if there are any openings between it and the wall. But there is another, more reliable, way to level the walls. To check if the wall is level, you can use the laser level. We take the laser level and set it at 45 degrees with respect to the plane of the wall. A laser line will appear on the wall, which will be strictly vertical if the wall is flat. This level reveals the unevenness of the walls. If there are bulges on the wall, then in places of curvature, the laser beam will change its direction. Moreover, if the laser beam is set at 45 degrees to the wall, then the distance from the pseudo vertical line to the laser beam line will be equal to the value of this bulge. If, on the contrary, concavities are visible on the wall,