Heavy rainfall can test every part of your home's drainage system. When stormwater exceeds your property's ability to move it away, water can back up through drains, overwhelm sewer lines, and cause costly flooding. Preparing your drains before severe weather arrives reduces the risk of water damage and keeps your plumbing system functioning when you need it most.
During intense storms, large volumes of water enter gutters, downspouts, yard drains, and foundation drains all at once. If these systems are clogged or undersized, water has nowhere to go. Additionally, municipal sewer systems can become overwhelmed, forcing water back toward homes through the main sewer line.
Homes with basements, older sewer lines, or poor grading are especially vulnerable. Understanding how stormwater interacts with your plumbing helps you take targeted preventive action before the next storm.
Clogged gutters overflow and dump water directly against your foundation. Clean gutters at least twice a year, and more often if you have overhanging trees. Check for sagging sections, loose fasteners, and disconnected downspouts that could fail during heavy rain.
Downspouts should discharge water at least six feet from your home. Use splash blocks, downspout extenders, or buried drain pipes to direct water toward a suitable drainage area. Water pooling near the foundation increases pressure on basement walls and floor drains.
Remove leaves, grass clippings, and sediment from yard drains and catch basins before storm season. These drains handle surface runoff and prevent pooling, but they cannot function when blocked. If your property floods frequently, you may need additional drainage improvements.
If your home has a French drain or dry well, ensure it is free of sediment buildup. Over time, soil and debris reduce the capacity of these systems. A professional can flush or rebuild the drainage field if water no longer drains properly.
A working sump pump is your basement's best defense against flooding. Pour water into the sump pit to confirm the pump activates and discharges water efficiently. Clean the pump inlet screen, check the discharge line for clogs, and verify the check valve is functioning. Consider a battery backup system for protection during power outages.
Water follows the path of least resistance. Seal visible cracks in basement walls and floors with appropriate masonry sealant. Proper exterior waterproofing and grading provide the best long-term protection against groundwater intrusion.
Partially clogged drains and sewer lines are more likely to back up when heavy rain increases system pressure. Schedule professional drain cleaning before storm season to remove buildup and reduce backup risk.
A backwater valve prevents sewage from flowing back into your home when municipal sewers are overloaded. If you live in a flood-prone area, this device provides essential protection. Have a plumber inspect and test your valve to ensure it closes properly during backups.
Floor drains in basements and utility rooms are common entry points for sewer backups during storms. Install removable plugs or backwater valves on these drains if they are not frequently used. Make sure any caps can be removed quickly in case you need access during normal conditions.
The ground around your home should slope away from the foundation at a minimum of six inches over the first ten feet. Poor grading directs rainwater toward your basement walls and foundation drains. Regrade problem areas and avoid planting water-loving plants against the foundation.
Keep storm drains on your street clear of debris when possible. Blocked street drains cause street flooding that can back up into residential systems and overwhelm your property's drainage capacity.
During severe storms, avoid using large amounts of water if your area is under a flood warning. Municipal sewer systems may be near capacity, and additional wastewater increases backup risk. If you notice water rising in floor drains or sewage odors, stop using water immediately and call for emergency drain service.
After the storm, inspect your basement, utility areas, and drains for signs of backup. Check your sump pump for debris, and test it again if it ran continuously. If drains are slow or emit odors, schedule a professional inspection to address any damage caused by the storm.
Some storm preparation tasks are best left to professionals. A plumber can install backwater valves, clean main sewer lines, repair sump pumps, and assess your overall drainage system. Investing in professional preparation before storm season often prevents far more expensive sewer and drain emergencies later.
Connect with local drain and sewer professionals who can storm-proof your plumbing system.
(888)205-1556