Today a coworker and I had the chance to attend the ACE 2010 Expo put on by the American WaterWorks Association (AWWA). We learned a lot about traditional products and some new innovations. Fortunately I brought my Flip camera and thanks to some great vendors was able to get short videos of their products to share with all of you! This first one is a demo of a sewer backflow prevention device. These products are sold by Mainline Backflow Products, an Edmonton-based company.
According to the vendor, about 400,000 of these are in place throughout Canada. I asked him about debris hanging up in the flap preventing it from closing. He said if the device is properly installed with the recommended slope, they have not seen any issues with debris preventing closures.
Below is a demo shown to us by the vendor:
