Do you guys that have a single tier, 3 vessel system have a dedicated inlet port on your pots/kettles? My cooler mash ton has an inlet near the top for sparging. But, I'm particularly interested on the brew kettle. Do you pump directly from the outlet of your mash ton, into the "outlet" of your boil kettle? Do you just pump over the top of the kettle? Do you have a specific port as an inlet that might have a quick connect, etc?