Water resistant pump question (Ping specific?)

Quick qquestion about the Ping. Is the external o-ring on the cartridge what makes it water resistant? If the cartridge was not installed, and the pump was submerged, would teh pump (me) be S.O.L? I refrain from getting my pump wet, but I want to understand this before I even consider taking it near a water source. Thanks in advance.

My assumption is that there is probably more than just that o-ring on the cartridge keeping the electronics safe. Think about it… what if there was a leak from the cartridge itself? I know this happened ALL the time with my Paradigm… even though I’ve yet to see it with the Ping :slight_smile:

Can’t say I’d recommend submerging it with the cartridge out though :slight_smile: