Adjustable Flow Drip Irrigation Nozzle Fittings

In my quest to water my garden from rainwater, I needed some nozzles and some more wye fittings I figured I could combine the two into a single part!

These nozzles have a spot for a 3m bolt or cap screw, which can be used to adjust the flow, or drip rate, out the nozzle. Everything is a parameter in the OpenSCAD files. You can customize the barb size, tweak the nozzle diameter, and whatever else you want. My plan is to hold the nozzles down to the soil level near the stem of the plants with a