[b16a2si]

I've seen the owner of AEM putting an AEM CAI with the bypass valve in a tub of water (Filter sunk all the way in) He's using his NSX so I guess that's supposed to mean that the bypass valve really works, but what happens if the filter is not all in a puddle of water? Is it gonna suck in water? Do you think the bypass valve works even if maybe 10 or 20% of the filter gets soaked in water?