This is what happens when you don’t maintain your backflow valve! The flapper sticks and won’t close during a backflow event.
Please see our other video about what backflow valves actually protect against, and what they do not do.
You will notice that the clear top of the backflow valve is bolted to the ABS base. While you CAN remove these bolts in order to clean your valve, I’ve found it unnecessary to do so. With a rag and running water, you can properly clean the valve and flapper without removing the clear top.
Duke Sewer Service Inc.
1601 St John St
Regina, SK S4P 1R6
Open 8:00 am – 11:00 pm
7 Days Per Week