To show liquid pressure increases with depth. A sheet metal cylinder with three orifices of same size but at different heights.
Features
Transparent cylinder: Made of acrylic or perspex to allow for clear visualization of the water and the effect of pressure at each spout. Multiple spouting nozzles: Typically features three or more spouts at different vertical positions on the cylinder. Demonstrates fluid principles: Designed to demonstrate Torricelli's theorem, which states that the speed of efflux from an opening is proportional to the square root of the height of the fluid above the opening, and Bernoulli's equation. Variable flow rates: Students can observe that the water shoots out with greater force and travels a greater horizontal distance from the lower spouts due to higher pressure. Stoppers: Some models include stoppers to block individual spouts, allowing for the focused analysis of pressure dynamics at a specific height. Constant water level: A filler hose barb allows for easy refilling and maintenance of a constant water depth, which is essential for consistent results.

