Discharge from a sump pump should never connect to which type of sewer?

Discharge from a sump pump should never connect to which type of sewer?

• A. Storm sewer
• B. Sanitary sewer
• C. Septic tank
• D. Waste line

Answer: (B)

Sump pump discharge is essentially clean groundwater that should be kept out of the sanitary sewer. The sanitary sewer is designed for human waste and household wastewater, and dumping large or continuous flows of groundwater into it can overwhelm the system, especially during heavy rain. This can lead to sewer backups, overflows, and added stress on treatment facilities, which is why codes require a separate discharge path for sump pumps. Because of that, connecting the discharge to the sanitary sewer is not allowed. Instead, the usual approach is to direct the water to an appropriate outlet such as a storm drainage system, a dry well, or landscaped area, following local regulations. Discharging to a storm sewer is generally acceptable where permitted, while sending sump water into a septic tank would overload that system, and tying into a waste line would mix non-wastewater with sanitary waste, which is improper.

Sump pump discharge is essentially clean groundwater that should be kept out of the sanitary sewer. The sanitary sewer is designed for human waste and household wastewater, and dumping large or continuous flows of groundwater into it can overwhelm the system, especially during heavy rain. This can lead to sewer backups, overflows, and added stress on treatment facilities, which is why codes require a separate discharge path for sump pumps.

Because of that, connecting the discharge to the sanitary sewer is not allowed. Instead, the usual approach is to direct the water to an appropriate outlet such as a storm drainage system, a dry well, or landscaped area, following local regulations. Discharging to a storm sewer is generally acceptable where permitted, while sending sump water into a septic tank would overload that system, and tying into a waste line would mix non-wastewater with sanitary waste, which is improper.