How do you deal with excessive splash out? I have the output about 2" from the water surface and it's enough to lose a half gallon over night.
I took a piece of foam board and sliced a slot out of the middle to fit around the spout - unfortunately this means the splash hits the bottom of the foam and eventually rolls down the sides of the tank.
Plan your brewer so when filled to operating volume it is below the edges of the container by a good deal and cover with a piece of fabric or plastic