Specifications

Size: 2"
low price, easy to install, no need human source

Working principle:

1, Venturi is follow the principle of Venturi.

2, And connect the venturi fertilizer with the water supply pipe.

3, When in use, turn down the control valve, so that there will be a pressure difference before and after the valve,

4, this pressure diference makes the water flow through the pipe of venturi automatically, then there will be a vacuum after the water,

5, the vacuum will suck the fertilizer liquid into the pipe network.

The advantage for venturi is easy to use, no need outside power, and cheap.

The disadvantage is the pressure lose a lot, so it is not suitable for big irrigation area.