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.
Usually by means of a water turbine. These devices are like highly complex water wheels (spun by falling water) that are coupled to an electrical generator. <br /><br /> It is never water itself that generates electricity, but rather the <i>movement</i> of water.