Also I should add this. In a hypo emergency, there is one way to do a zero basal without your PDM. It’s so obvious to say, that is will sound somewhat stupid. But I want to make sure people think about it.
If you don’t have your PDM, and you need to stop your insulin, pull the pod off.
Stupid and obvious, sure. But worth storing in your brain for a hypo emergency.
(But then you have no insulin, so that would be a different problem to solve…)