Garden hose bottle adapter

I made this to add an additive to my irrigation system. The thread fits to a (european) PET bottle. The idea is that a watersoluable fertilizer placed in the PET bottle will be mixed into the waterstream. Matching seals can be found with my other models. Happy watering :)

If your print leaks there might be several reasons: (1) Filament dryness and printing environment. Wet filament and temperature changes lead to shrinkages or enlargements in the final print up so several mm. This is a significant delta which causes the O-Ring not to fit tightly. Solution: dry filament and control printing environment. (2) O-Rings do not fit to printed model. This effect comes from very slight variations in O-Ring manufacturing tolerances and print-tolerances. Original Gardena O-Rings might be 0.5mm smaller than what the model would require to seal the space between adapter, O-Ring and quick-release on the hose itself. Solution: scale up the O-Ring from my models or use the slightly bigger version (coming up). My first advise would be to use a 5% scaled up O-ring printed from TPU.