Backflow & plumbing questions, answered
Straight answers about backflow prevention, Ottawa’s program and commercial plumbing. If you don’t see your question here, call us.
Backflow basics
What is backflow?+
Backflow is the unwanted flow of contaminated water reversing into your clean, potable water supply.
What causes backflow?+
It’s usually caused by an abnormal drop in water pressure that siphons contaminated water back into the clean supply (back-siphonage), or by pressure inside a building rising above supply pressure (back pressure).
Why is backflow a concern?+
Backflow can contaminate the clean water supply with hazardous substances, chemicals or bacteria, which is a serious health risk for anyone drinking that water.
Ottawa’s Backflow Prevention Program
What is Ottawa’s Backflow Prevention Program?+
Under the Safe Drinking Water Act and Ontario Ministry of the Environment requirements, water purveyors must protect the supply from the point of delivery. Since January 1, 2018, the City of Ottawa has required around 14,000 business, industrial, commercial, institutional and multi-residential properties to comply.
How often must devices be tested?+
Every backflow prevention device must be tested at least once a year by a qualified tester, with results submitted to the City.
How often is a site survey required?+
A site survey must be completed and submitted to the City for review every five years. Tourangeau Mechanical is qualified to complete it for you.
Do you submit test results to the City for me?+
Yes. After each test we file the report with the City of Ottawa and send you a copy for your records.
Working with Tourangeau
Why choose Tourangeau Mechanical for backflow?+
We’ve served Ottawa since 1995, we test over 750 backflow devices every year, and close to 100% of our clients come back. We install, repair and test every type of backflow prevention device.
Are your plumbers fully qualified and equipped?+
Yes. Our plumbers are skilled, qualified and insured, and we’re committed to ongoing training for every employee.
Do you offer emergency service?+
Yes. We’re open 24 hours a day, seven days a week. Call (613) 747-0174.
Drains & foundations
What is weeping tile?+
Weeping tiles are underground pipes around a basement foundation that collect or discharge groundwater.
Can I install weeping tiles myself?+
It isn’t recommended. Installation requires knowledge of foundation drainage and proper techniques, so hire an experienced professional to make sure the system works.