That reminds me of an article about emotional labor in service jobs. It called that forced cheer a hidden cost of customer-facing work. Makes you wonder how many smiles are actually just part of the uniform.

So you had to redo the whole loop because of a kink? That sounds brutal. Did you try bending the tubes before you put them in to see how they'd sit, or is that kind of thing impossible to really test until the whole system is under pressure?

Yeah, I read an article about that exact thing with kitchen knives. The cheap ones go dull fast and you end up spending more in the long run.