Look at the Pictures for a Guide to the Options.

For building Ebb and Flood Hydroponics

PLEASE COMMENT
if you find Values that work well.

Default Values work decently fine. Some drops leaking at double walls.
I recommend printing 3 walls for stability and a good seal (wall width=3x Nozzle diameter)

Inspired by:
https://www.thingiverse.com/thing:3190650

Modules for Nut/Thread from:
https://www.thingiverse.com/thing:193647