At Impact Plumbing, we are continuously advising the community to get a Backwater Valve in Toronto, as it is the ONLY way to prevent sewer backflow into your home. This hazardous backflow can cause expensive damage AND serious health problems. It is after all sewage from any house, business or building in your neighborhood coming back up the drain and flooding into your basement! YUCK!
In Toronto we see as much as 90mm of rain in a single hour! This occasional causes our overburden and 100 year old sewer system A LOT of stress. It was not designed to handle that much water flow in such a short time and when it gets overwhelmed it STOPS flowing. This is when the real problems for home owners occur! If the sewer is full and has nowhere to go, guess where it starts to drift into? YOUR HOME!