Originally Posted by Robbyraz
So i have the same cooler that i'm ready to convert. One question i have is if
i batch sparge how much liquid will i be able to drain from the bottom of the manifold. I was concerned about the height of the drain plug and was considering drilling a new hole and relocating it lower on the side. I want to be able to get as much of the first runnings as i possibly can so i can achieve the best effeciency posssible.
When doing "dry runs" without the grains, there's no more than 1-2 cups left of fluid.
In a real world situation, the grains will hold on to lots of fluid which is more slowly "released", so more liquid will be left in the cooler.
But, in a batch sparge scenario, your first runnings will be mixed with the 2nd, and you'll still get the vast majority of the goodness out of the cooler and into your boil kettle