This illustration is about the third step in using an indoor fire hydrant – connecting the water pipe. The main content of the picture is a hand turning the red round valve on the fire hydrant. The fingers and thumb wrap around the edge of the round handle, applying force to make it rotate. The valve wheel is round with spokes for easy grip. The twisting action opens the valve and allows water to flow through the wide white hose. The illustration is simple and easy to understand, with clean lines and minimal shading. Illustration style, iPad hand-drawn style, cartoon style, simple coloring, flat illustration style, white background.