David McKeen, an inventor from Ottawa, has created a device aimed at preventing wildfires rather than fighting them. He refers to his invention as a "Wall of Water," which he describes as a "sprinkler system on steroids." McKeen's device is designed to protect homes and businesses in the path of wildfires by thoroughly soaking them to guard against flying embers.

The Wall of Water requires only a water source that is less than a meter deep, such as a lake, river, pond, swimming pool, or even saltwater from the ocean. McKeen emphasizes the simplicity of the system, stating, "I can do it myself, and I’m 77 years old."

During a demonstration, McKeen activates the engine that powers the device, which produces a loud roar as it pumps water. A water gun mounted on a tower over four meters tall begins to rotate, spraying water in a sweeping circle that can reach nearly 150 meters in diameter and over 15 meters high.

McKeen conceived the idea for the portable Wall of Water five years ago after witnessing the destruction caused by wildfires in videos. His invention aims to provide a proactive solution to the increasing threat of wildfires, especially in vulnerable areas.