|The next sections of the Water Tower are straightforward boxes.
On the lowest section, fold the staircases outward as shown (fig. 4).
Glue the rooftop pieces of each section inset a little from the top edge of the wall so that a little railing is created around the rooftops of each level. You can use a chopstick or blunt pencil to push the roof pieces up from the inside to move them into the right position and level all around.
Glue the top shaft onto the middle section and the middle section onto the lower section, taking care to line up the stars as before (fig. 4).