How to Install a Backflow Preventer | DoItYourself.com

💧 Why every basement renovation needs this! During a basement reno, one of the most important things we install is a backflow prevention valve. Toronto’s city water can sometimes push back into older homes, and the last place you want that water ending up is inside your basement. This simple device uses a flap that closes when water tries to flow the wrong way, keeping your drains protected and your basement dry. Small addition, huge peace of mind. | Bigelow Construction

Mechanical Flood Protection on Instagram: "Tricky installations like this one highlight why basement flooding protection requires experience and planning. In this project, we're cutting in a trench and installing a brand new sump basin near the walkout basement door—an area notorious for flooding. To make this work, we're running a solid 4-inch BDS pipe through gravel directly to the new sump pump system. The result? A clean, integrated system designed to move water out before it becomes a probl

Choosing A Backflow Preventer | Sprinkler School