I was wondering if anyone could offer advice on methods of directional air flow control. I need to be able to pressurize three different containers at different times with a single pump. I basically need a mechanism that takes in air from 1/4" tubing (or any size around this; I can figure out how to deal with different sizes) and outputs to three similar-sized tubes that run to different containers.
It should be electronically controlled, so that it can be programmed to autonomously which tube the air flows out of, and fairly quiet (I prefer to avoid solenoids because of the annoying clicking noise).
I also strongly prefer a method that allows for minimal power consumption, since I need the arduino to run for extended periods of times while repeatedly pressurizing these containers.
I have already tested the pump-tubing-container setup, so I just need help with the mechanism to control airflow.