350 mag bravo 3 hose diagram? Where does the large hose run?

[lrdchaos]

I’m trying to figure out my water flow in my new to me 2014 350 mag engine. For instance I poured 2.5 gallons on antifreeze into the large hose and it finally ran out my thermostat housing. Does that large hose go to the seawater pump on the lower starboard side of the engine, then to the water manifold housing on the bottom port side of the engine then back up, I assume it goes through the block at some point? I had antifreeze dripping out of the pickup holes on my out drive afterwards. I’m just trying to figure out water flow.

 

[alldodge]

This is the EC open cool system