Spa jet plug / bung

thingiverse

https://www.youtube.com/watch?v=NyYP5UVp-x0&feature=youtu.be You're welcome to use these tiny caps I use in my home spa jacuzzi for clearing out water jets, one at a time, as needed. They help prevent stale water from sitting in the tubes between uses. When using the input adapter to feed in fresh water, simply pressurize it and watch as the unwanted liquid escapes through just one jet at a time. Don't forget this essential step if you haven't cleaned out the jets previously! Scale these bungs up or down according to your 16mm system. You'll find they have an added edge for effortless extraction, even from snug-fitting jets. These are not works of art but functional designs crafted with low-cost plastic in mind – straightforward and to the point. Here are some essential tips: Print in PLA at 5% infill, using two shell settings. Don't miss these crucial parameters! Build a small quantity – that is four caps – by loading the build plate accordingly. Remember, size does matter here, with "160" denoting your desired 16.0mm diameter.