Now that we have a basic understanding of the sewer drain system, let's explore the common causes of clogs:

: Flushing the toilet causes water to gurgle or rise in the bathtub or shower.

Safety is paramount. Raw sewage contains pathogens, including E. coli and hepatitis. Heavy-duty rubber gloves, eye protection, and old clothing are non-negotiable. Before any mechanical work, the water supply to the house should be shut off, and all family members should avoid using plumbing fixtures to prevent additional backup.

If the clog is past the cleanout toward the street, it may be the responsibility of your . Contact them first if you suspect a blockage in the public lateral. If you'd like to troubleshoot further, tell me: Are you seeing water backing up in your tubs or showers? Do you have access to a motorized drain snake ? Is your home on a sewer or septic system? How to Unclog the Main Household Drain - Lowe's