The check valve: to avoid ending up with your feet in the water

City of Vaudreuil-Dorion regulations require the installation of a check valve for all residences, regardless of the year of construction. It's a safe way to prevent sewer backups.

It must be installed on horizontal connections receiving wastewater from all appliances, including floor drains, holding pits, interceptors, tanks and all other traps in basements.

All valves must be easily accessible for maintenance and cleaning. Regular checks are essential to ensure proper operation. To do this:

• Unscrew the access plug and check the condition of the gasket. Replace if necessary.
• Remove the swing door to clean and check the condition of the rubber seal; replace if necessary.
• Clean the hinge, which must be free of debris.
• Reinstall the swing door in the correct direction, ensuring the correct swinging motion.
• Screw the access plug back on tightly, and replace the access cover if necessary.

More details on the Régie du bâtiment du Québec website.