When connected to a septic tank, a building sewer can be considered as a building drain if its developed length does not exceed what?

In the context of plumbing codes and regulations, the term "building drain" refers to a system of pipes that conveys wastewater from a building to a point of disposal. When a building sewer is connected to a septic tank, there is a specific limit on the developed length of the sewer for it to still be considered a building drain.

The correct answer indicates that this maximum developed length is 10 feet. This regulation is in place to ensure that wastewater does not become stagnant and that proper flow is maintained to the septic tank, preventing potential health hazards and system failures.

When the developed length of the sewer exceeds this maximum, the system may not operate effectively, leading to potential blockages or malfunctions. Hence, compliance with this guideline is crucial for maintaining the integrity of the septic system and promoting efficient waste disposal.

Therefore, recognizing that the developed length must not exceed 10 feet is vital for anyone involved in plumbing work connected to septic systems. This limit helps ensure optimal functioning and contributes to public health and environmental standards.