I love my ThermoQuads, but one of them has a problem

In my TQ travels, I too, have been looking for the magic glue or epoxy for those wells. A few years ago somebody recommended Devcon Plastic Welder, Part no 14300. I bought some at our local Grainger store. I never got around to trying it and I see that it expired in 2012. It comes in a little 2 tube syringe that gets mixed after you squeeze it out. I just bought some Seal-All, to see if it works. I do remember that the Devcon was a little pricy, but if it would work it would be worth it.