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.
a cylinder, frame, or other device that turns on an axis and is used to wind up or pay out something. a rotatory device attached to a fishing rod at the butt, for winding up or letting out the line.