A horizontal drainage line makes two 90-degree bends and one 45-degree bend in sequence. The aggregate change of direction is 225 degrees. According to cleanout requirements:

• A cleanout is required only if the pipe is 3 inches or larger.
• A cleanout is required because the aggregate change exceeds 135 degrees.
• No cleanout is required because individual bends are less than 135 degrees.
• A cleanout is required only if the distance between bends exceeds 10 feet.