Yep I had a plastic barb break off my coolant reservoir tank. I reamed it out with a twist drill, used epoxy to glue in a new barb I got at the hardware store,

Yep I had a plastic barb break off my coolant reservoir tank. I reamed it out with a twist drill, used epoxy to glue in a new barb I got at the hardware store, and it's been good since then (over 2 years now).