How Can I Prevent Sewage Backups During Hurricane Season?

A backwater valve, or backflow valve, is a crucial device installed on your main sewer line. It allows sewage to flow out but automatically closes if water tries to flow backward from the public sewer into your home. This physical barrier is one of the most effective defenses against sewage backups during extreme weather events when municipal systems are overloaded.

A plumber should install this valve. Its location is critical, typically where your home's main drain line exits the foundation. After installation, test it periodically according to the manufacturer's instructions to ensure the flap mechanism moves freely and seals properly.

Your home's sewer lateral is the pipe connecting your drains to the city's main sewer line. Tree roots, grease buildup, and debris can clog this line, making backups more likely during high water volumes. Have a plumber inspect and clean this lateral line regularly, ideally before hurricane season begins.

Keep roof gutters clean and ensure downspouts direct water away from your foundation. Also, never pour fats or cooking oils down the drain, as they solidify in pipes. Avoid flushing anything besides toilet paper, as wipes and hygiene products can cause blockages that become critical during a storm.

• Schedule a professional sewer line inspection.
• Have the lateral hydro-jetted or mechanically cleaned to remove roots and grease.
• Ensure all downspouts extend at least five feet from the house.
• Never pour grease, oil, or fat into any sink drain.
• Install drain screens in sinks and tubs to catch hair and debris.
• Only flush human waste and toilet paper; no wipes or paper towels.

If sewage backs up into your home, treat it as a serious health hazard. Avoid contact with the water, as it contains harmful bacteria and viruses. Do not use any drains or toilets. If safe to do so, turn off the main water supply to the house to prevent adding more water to the situation.

Immediately contact local water damage pros for sewage backup cleanup. They have the training and equipment to safely extract the contaminated water, sanitize the area, and begin structural drying. Do not attempt to clean it yourself with a regular vacuum or mop. Keep children and pets away from the affected area. You should also document the damage for your insurance company. Policies vary, and your insurer decides what is covered.