What is the maximum distance for cleanouts in piping larger than 4 inches?

The correct answer of 100 feet relates to the maximum distance for cleanouts in piping larger than 4 inches, as specified in plumbing design standards. This distance is important because cleanouts provide necessary access for maintenance, inspection, and clearing of blockages in the drainage system. For larger pipes, the recommended spacing allows plumbing systems to be both functional and manageable, ensuring that technicians can efficiently maintain the system without excessive difficulty.

The 100-foot limit is established to balance the need for accessibility while also recognizing that larger diameter pipes can carry greater volumes of water and waste, potentially leading to less frequent clogs compared to smaller pipes. Therefore, having cleanouts at intervals of no more than 100 feet ensures that any required maintenance can be conducted with reasonable effort, promoting the longevity and efficiency of the plumbing system.