According to the UPC, the maximum distance between manholes may not exceed?

According to the UPC, the maximum distance between manholes may not exceed?

• A. 200'
• B. 300'
• C. 400'
• D. 500'

Answer: (B)

The rule is about ensuring access for maintenance and inspection of gravity drainage lines. Manholes provide the necessary entry points for cleaning, rodding, and checking the line, as well as venting and evaluating the flow. If a sewer runs too long without a manhole, a blockage can go unnoticed and cleaning equipment may not reach it effectively. The Uniform Plumbing Code sets the maximum spacing at 300 feet, so any segment longer than that needs an additional manhole within 300 feet. Distances like 200 feet would create more access points than typically needed, while distances such as 400 or 500 feet would leave too long an run without access, making maintenance harder and reducing reliability.

The rule is about ensuring access for maintenance and inspection of gravity drainage lines. Manholes provide the necessary entry points for cleaning, rodding, and checking the line, as well as venting and evaluating the flow. If a sewer runs too long without a manhole, a blockage can go unnoticed and cleaning equipment may not reach it effectively. The Uniform Plumbing Code sets the maximum spacing at 300 feet, so any segment longer than that needs an additional manhole within 300 feet. Distances like 200 feet would create more access points than typically needed, while distances such as 400 or 500 feet would leave too long an run without access, making maintenance harder and reducing reliability.