Unless located on a stack, what is the minimum size of a cleanout serving a 3-inch pipe?

Unless located on a stack, what is the minimum size of a cleanout serving a 3-inch pipe?

• A. 2 inches
• B. 3 inches
• C. 4 inches
• D. 5 inches

Answer: (B)

The minimum size of a cleanout serving a 3-inch pipe is 3 inches. Cleanouts are vital components in plumbing as they provide access points for cleaning and maintenance of drainage systems. The size of the cleanout must match or be larger than the pipe size to ensure effective cleaning and clog removal. In practice, a cleanout that is equal to the diameter of the drain pipe allows for better cleaning access and less obstruction when using snakes or cleaning tools. For a 3-inch pipe, a cleanout that is also 3 inches in diameter ensures that any debris or obstructions can be effectively removed without the risk of creating bottlenecks or inefficiencies in the plumbing system. While larger cleanouts could theoretically provide easier access, they are not required by code unless specified otherwise, such as when located on a stack where different requirements may apply. Therefore, the correct answer is that a cleanout serving a 3-inch pipe must have a minimum size of 3 inches.

The minimum size of a cleanout serving a 3-inch pipe is 3 inches. Cleanouts are vital components in plumbing as they provide access points for cleaning and maintenance of drainage systems. The size of the cleanout must match or be larger than the pipe size to ensure effective cleaning and clog removal.

In practice, a cleanout that is equal to the diameter of the drain pipe allows for better cleaning access and less obstruction when using snakes or cleaning tools. For a 3-inch pipe, a cleanout that is also 3 inches in diameter ensures that any debris or obstructions can be effectively removed without the risk of creating bottlenecks or inefficiencies in the plumbing system.

While larger cleanouts could theoretically provide easier access, they are not required by code unless specified otherwise, such as when located on a stack where different requirements may apply. Therefore, the correct answer is that a cleanout serving a 3-inch pipe must have a minimum size of 3 inches.