W111 sedan trunk leak / drain questions...

[ScooterABC]

I'm working on waterproofing the trunk of my 1963 220S. Today I got grumpy but compliant husband to get inside trunk with a flashlight while I sprayed water all around (pretty good deal, no?). Here's what we found:

1. Trunk seal is leaking just about everywhere, no real surprise there

2. C-pillar vents - if I hose water in there it comes pouring in along sides of trunk interior and drains out the currently unplugged hole at the bottom of both of the side wells. (Rubber mats are all removed).

3. Trunk hinge area - if I hose water in there it seems to go into a rubber tube and then still come out along the sides of the trunk as with the C-pillar vents.

I assume that the hose is putting out more than an expected amount of water for a rubber drain line to deal with, but I also assume that something is wrong.

I don't have any idea how either the trunk hinge areas or the vents are supposed to drain, so I defer to those who know more and ask for some suggestions...

thanks
Scott