Sump Pump and Downspout Connections

A sanitary sewer line is sized for wastewater from toilets, sinks and appliances, not rain or groundwater. When a sump pump, downspout or yard drain is piped into the sewer line at a Nampa, ID home, a storm can overload it and push sewage toward the lowest drain.

What a plumber may check
A plumber can trace where the sump discharge, downspouts and area drains go, using a camera or dye test. If one ties into the sewer, the fix is to disconnect and cap it and send the water outdoors.

Dry climate, hidden connections
Nampa averages about 11 inches of precipitation a year, so a hidden connection may go unnoticed until a storm or snowmelt finally overloads the line.

Call about drain connections and describe where the sump pump, downspouts and yard drains empty now.