Infiltration may result from

Infiltration may result from

• A. Bad joints
• B. Direct closed-circuit television operation
• C. Poor ventilation
• D. Direct downspout and drain connections

Answer: (D)

Infiltration is water from outside the sewer system entering through openings in the pipe network. A direct downspout or drain connection provides a clear path for rainwater or exterior drainage to flow into the sanitary sewer, especially during wet weather. That extra water increases the amount flowing in the sewer, making this a classic source of infiltration. While leaks in joints can also allow water in, the direct connection from downspouts and drains is the most straightforward and common way outside water gets into the system. Poor ventilation doesn’t introduce water into the sewer, and direct use of CCTV is a inspection method, not a source of infiltration.

Infiltration is water from outside the sewer system entering through openings in the pipe network. A direct downspout or drain connection provides a clear path for rainwater or exterior drainage to flow into the sanitary sewer, especially during wet weather. That extra water increases the amount flowing in the sewer, making this a classic source of infiltration. While leaks in joints can also allow water in, the direct connection from downspouts and drains is the most straightforward and common way outside water gets into the system. Poor ventilation doesn’t introduce water into the sewer, and direct use of CCTV is a inspection method, not a source of infiltration.