The image shows a large metal tank with a red button on the bottom right corner. The tank appears to be in a room with a concrete wall on the left side and a window on the right side. On the top of the tank, there is a whiteboard with a blue line drawn on it. The line is curved and appears to represent a waveform or a line graph. There is also a small red button in the bottom left corner of the image. The image is taken from a low angle, looking up at the tank.