Float valve central command

Hello, Please find here a open top box in what a float valve can be installed to bring in water and nutrient, and in what we have 7 outlets that can be lead to buckets for hydro gardening. Top comes later. Made in Sketchup, printed on Bambu Lab X1C. Filament PETG. Cover please find here: https://www.thingiverse.com/thing:6845421