Can I run my sump pump into the sewer line?

Question: Can I run my sump pump into the sewer line? Is there a way to connect my sump pump to the sewer line?

Answer: Although it may be legal in your region to connect your sump pump to the sewer line, in most of the United States it is illegal to connect your sump pump to your sewer line.

When there is heavy rainfall, the sewage treatment plants can become overloaded. If you are connected to the sewer line, it can mean sewage backing up through the line and overflowing into your home. Also, cross-connecting your sump pump to the sanitary sewer system can overload the sewers if too many sump pumps are connected.

By connecting your pump to the main sewer line, you are exposing your home to water and sewer damage. Most sump pumps are linked to storm sewers.

Another reason your sump pump should not be linked to the sewer line is because the city can not monitor your water use. If you’re connected to the sewer line, the municipal departments cannot accurately track your home's water use.

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