Humidifier Float Valve

[Delphinus]

True dat Steve, the most sage outlook is to assume anything can fail - valve or switch or whatever, and then plan accordingly in anticipation of the what-if's.

I'm not sure a horse is simpler than a car though. I'm a city boy with a wrench, I wouldn't know the first thing to do with a horse but I can tinker in an engine. So to some extent "simpler" might be a matter of perception.