Rubens Tube Yule Log

Step 5 PVC endcap

You need a hole in your PVC end cap to facilitate your barb adapter. I clamped the endcap, marked the center, and hit it with the punch. After taking out most of the material in the hole with a regular twist drill (be careful, PVC has a nasty habit of grabbing hold of drills and being mean to them) I enlarged the hole to nearly the size of my fitting with a step drill. Your fitting may vary, so check your measurements, but mine was 9/16" across. After your hole is the right size, you can simply screw your fitting into the hole with a wrench.