A Nutrition Consultant in the Houston, TX Area area reported making $34,000 per year
Water level (device) A water level is a device used for matching elevations of locations that are too far apart for a spirit level to span. The simplest water level is a section of clear tubing, partially filled with water. Water is easily procured for use, and easily discarded after use.
blind. 1. A device to obstruct vision or keep out light; usually a shade, a screen, or an assemblage of light panels or slats. 2. A solid disk inserted in a pipe joint or union to prevent the flow of water during the repair of a water distribution system.