Devices, systems, and methods for providing a predetermined amount of fluid in an assembly line grow pod are provided. Some embodiments include an assembly line grow pod having a fluid source and a fluid distribution manifold. The fluid distribution manifold includes a fluid inlet, a plurality of fluid outlets, a plurality of valves coupled within the fluid outlets and movable between an open position and a closed position, a plurality of biasing assemblies coupled to the of valves to bias the valves in the closed position, and a plurality of tension rings coupled to the biasing assemblies to adjust an amount of biasing force applied by the biasing assemblies. Fluid from the fluid source having a fluid pressure that exceeds the biasing force causes the valves to move to the open position such that a specific amount of the fluid is ejected from the fluid outlets.
