What injection method uses water flow to create suction?

The Assisted Venturi method utilizes the principles of fluid dynamics to create suction through the use of water flow. In this method, water flows through a narrowed section of a pipe, which creates a drop in pressure. This pressure difference allows air or another fluid to be drawn into the flow, effectively creating suction. The term "assisted" indicates that an external influence, such as water pressure, is employed to enhance the vacuum effect created by the Venturi effect.

In contrast, the Unassisted Venturi relies purely on the flow dynamics of the liquid without any external pressure assistance, and thus might not achieve the same level of suction efficiency. Pressure injection typically involves introducing a substance under pressure, rather than creating suction, while vacuum injection usually involves using a mechanical vacuum source to extract air or fluids, rather than relying on the movement of water to create suction. Therefore, the Assisted Venturi method is specifically designed to use water flow as a means to effectively generate suction.