Installing a backwater valve will prevent sewer drains from backing up and overflowing with sewer water – eliminating sewer backflow as a source of basement flooding.
Eliminate main drain backflow
Sewer backflow is a problem in the City of Calgary we experience very heavy rainfall during the summer months which can cause the municipal sewer system to backup through the sewer drains of homes and property.
The most effective method to prevent the backflow of sewer water is a simple device called a backwater valve. Installation of a backwater valve prevents water from traveling back into your home as it is a one-way valve. It is bylaw now that modern homes are built with backwater valves installed, but the majority of older homes are still at risk of basement flooding via sewer backflow, which can be a very costly and traumatic experience.