I am building a small-scale watering system to water my plants, controlled by Arduino. I have designed most of the project except for how to switch water between multiple pipes.
A little more background:
I want to be able to use a servo motor to control the amount of water that is sent to each plant (based on pot size and plant type). The motor needs to be able to switch input (a 1/2 inch pipe carrying water) to a set of outputs (similarly sized pipes all going to different plants). I am not able to find something off the shelf that does this. So, I am about to 3D print something. Is there something available that I can use instead?