necessities

1x o-ring  (11mm diameter and 2,5mm thickness)

o-ring can be taken from an old hose coupler.

Assembly

After you have printed the nozzle file, insert the o-ring on the nozzle like in the photo's.

the caps can be easily screwed onto the sprinkler.

Print settings

To ensure that the print is watertight, I recommend having at least 4 perimeters and printing with a layer height of no more than 0.2 mm. I have only made the inside with a 4 perimeter in the pre-sliced file to save some time and fillament.

If you still have leaks I recommend reading this article: [https://blog.prusaprinters.org/watertight-3d-printing-pt1-vases-cups-and-other-open-models_48949/](https://blog.prusaprinters.org/watertight-3d-printing-pt1-vases-cups-and-other-open-models_48949/)

I have also left a blank cap so that you can make one yourself.