Using a level, often called a leveller, is a simple process that allows you to determine if a surface is perfectly flat (horizontal) or straight up and down (vertical). The operation is straightforward and relies on the position of a bubble within a marked vial.
Understanding Your Leveller
Most standard levels contain one or more vials filled with liquid, leaving a small air bubble. These vials are marked, typically with lines, to indicate the center point. When the bubble rests precisely between these marks, it signifies that the surface the level is resting on is either perfectly horizontal or vertical, depending on the vial's orientation.
Simple Steps to Use a Leveller
Based on the fundamental operation described, using a leveller involves just a couple of key actions:
- Placement: Place the level's frame on the object to be leveled (horizontal) or plumbed (vertical). Position the level along the surface you want to check. For a horizontal check, place it flat on top of the surface. For a vertical check (plumb), place it against the side of the object.
- Adjustment: Move the object until the bubble is in the center of the vial, typically marked. Carefully adjust the position or angle of the object (or the surface it's on) until the air bubble within the vial settles exactly between the two central marks.
That's it. Once the bubble is centered, the object or surface is considered level or plumb.
When to Use a Leveller
Levellers are essential tools for various tasks, including:
- Hanging pictures or shelves straight.
- Installing cabinets or countertops.
- Building decks, fences, or walls.
- Laying tiles or paving stones.
- Checking the slope for drainage.
By following the simple steps of placing the level and adjusting until the bubble is centered in the marked vial, you can accurately ensure items and surfaces are properly aligned.
