The Pump Room is a room in Blue Prince that can control the water flow around the Mt. Holly estate. By accessing the control panel and pumps inside the Pump Room, you can fill and drain water ...

[Yoshihito Isogawa] almost never employs non-LEGO parts in his creations. He created an excellent centrifugal pump out of 100% LEGO. While mostly a curiosity, you can definitely get a sense of ...