Odor Proof Floor Drain, Shower Drain Plus, Anti-Odor, Prevent Backflow, Prevent Odor Dispersion in Bathrooms, and Kitchens (Fit 1.5''-2.0'' Caliber) (1)

a similar princip but the weight of the water opens a hatch. Although you would a good spring for this and we know that PLA/PETG springs can lose their tension. Something on Amazon <---click it