Yeah, that's what I was thinking. It's easy enough to do it yourself(Barb fittings are probably fine since this is slight negative pressure), but everyone would

Yeah, that's what I was thinking. It's easy enough to do it yourself(Barb fittings are probably fine since this is slight negative pressure), but everyone would probably prefer not to risk the more-than-i-make-in-three-years server to a non-specialist. I was thinking to not even use separate inlets and outlets at all. The connectors would be 3-port in/out/vacuum air, with the vacuum port meant to be very slightly leaky. You'd wrap the whole entire connector in a silicone sleeve, so that any small leaks in the connector(If the negative pressure on the water itself failed) would be contained and sucked back through the vacuum hose and trigger shutdown. For a prototype you'd just 3D print some connectors and wrap them with tape, and let a mechanical engineer figure it out if your ever get to production, since poor quality, leaky parts are a good thing in a prototype, where the goal is to prove that the server stays dry even when things fail.