[As an engineer you should know that a wall will not transmit moisture to the point that it will run down the inside of a wall rather than run down the outside of a wall. If you don't understand that you aint no real engineer. It's basic physics.
.
you DO get water droplets forming on the inside of a wall, in
adverse weather conditions.
normally a porous brick wall gets soaked then it dries. in adverse conditions i.e. driving rain, the wall gets a continual soaking until it becomes
saturated.
it is after saturation point that when a drop of rain falls on the outside of the brick it forms a droplet or bead of water on the inside. this carrie
s on until it actually starts running down the inside.
now for the love of god stop making a fool of yourself and quit digging holes.