Backwater Valves in Calgary: How They Stop Sewer Backups and What Installation Involves
Quick Answer A backwater valve is a one-way device fitted to your home’s main sewer line. It lets wastewater flow out as normal, then closes automatically if the city sewer overloads and pushes sewage back toward your house. That closing flap is what keeps contaminated water out of your basement during heavy storms or spring […]
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