Hey all, Back in the day it was fairly commonplace to repurpose and DIY parts to use in water loops, but this really isn't the case anymore. For an upcoming potential project I am considering DIY:ing my own reservoir out of a glass container. The container has a small hole near the bottom large enough for the purpose. How would I go about attaching a fitting to the hole? I've seen many so called "bulkhead fittings" but they don't seem to be designed to form a water-tight barrier around the hole in which they are inserted, just to be attached panel mount style and have a G1/4 BSP thread on either side. Would it be a good idea to use one of these bulkhead fittings and my own 3rd party rubber o-ring to make a seal and create the reservoir, or are there better solutions out there? Appreciate any suggestions!