Adjust water through a compatible Venturi bypass with this control valve. Use it to set the pressure difference needed for fertilizer suction.
How it fits your setup
A Venturi needs a pressure difference to draw solution. The bypass valve lets you tune flow through the injection path as part of a complete assembly rather than treating suction as an on-off function.
Choosing and using it
Match the valve connection and pressure rating to the exact pipe and injector kit; this listing alone does not include a complete injection system. Make adjustments while water is flowing, measure actual solution draw and close or isolate the fertilizer line after feeding.