Clogged Main Drain [updated] Instant

Bubbling sounds coming from your drains or toilets when you run the washing machine or dishwasher indicate trapped air caused by a blockage.

I stopped. The water didn't budge.

Your home has a network of secondary drains (sinks, tubs, toilets) that all lead to one central pipe: the . This line carries all wastewater away from your house to either a municipal sewer system or a private septic tank. When this "artery" is blocked, no water can leave the house, causing it to back up into the lowest points of your home. 5 Warning Signs of a Main Sewer Line Blockage clogged main drain

Older homes with cast iron or clay pipes can collapse or sag over time, creating a physical barrier. How to Fix a Clogged Main Drain

The Homeowner’s Guide to a Clogged Main Drain: Signs, Solutions, and Prevention Bubbling sounds coming from your drains or toilets

I shut off the main water valve to the house immediately. The panic was rising almost as fast as the water in the utility sink. A main drain clog means every drop of water that enters your house—showers, sinks, toilets—has nowhere to go but backward.

The most common culprit. Roots are attracted to the moisture in sewer lines and can enter through small cracks, eventually filling the pipe. Your home has a network of secondary drains

Pouring cooking oil down the drain allows it to solidify deep in the pipes, catching other debris.

If you have large trees near your sewer line, have a plumber "snake" the line once a year as a preventative measure.