Citric Acid Co2 Needle Valve

thingiverse

This is an improvised DIY needle valve for individuals utilizing citric acid in CO2 infusion. My needle valve failed, but this makeshift solution works as a temporary fix until I acquire a new CO2 kit. However, please note that it puts additional stress on the CO2 line itself. For now, it's functional, and I'll monitor its performance, reporting back with any updates. Unfortunately, I don't have a detailed parts list since I cobbled this together using available materials. The nuts used are 6mm in diameter, and the bolt should fit snugly, measuring at least 4cm in length. To improve usability and increase contact area with the CO2 line, I added large threaded washers at both ends.