I don't understand why anyone would want to use an air pad pump bag as a shower, risking getting residual water into the air pad's insulation!

I did test my Schnozzle in the bathtub (turned it inside out and filled it with water), and there was a small amount of seepage, which is why I wouldn't trust it to keep my sleeping bag dry in my pack.

I tested my Pumphouse the same way and it leaked like a sieve!