The Pro Series Brewing Systems are designed for maximum flexibility. There are many ways of using the systems based on personal preference, what kind of accessories you have and how your brewing area is set up. The basic principle in the system is a tank with a conical bottom with heating elements, a temperature sensor, a center pipe that's easily removable, an outlet port on each side and a 3-way valve in the bottom which makes it possible to circulate both over the grain bed and through the lower outlet and counterflow cooler or tube at the same time with full flow control. This makes it easy to maintain accurate temperatures outside the malt pipe as you circulate the wort around and up through the malt pipe and over the grain bed.