We're not gonna go into the physics of it, but we're just gonna take this chart as fact. But the rate at which the water drains decreases all the way to the 60th minute, which is 40 minutes after he opened the drain. 60th minute, all of the water was drained. All of the water was actually drained out. So given that, how do we think about how many gallons of water were in the hot tub before it started to leak? And I encourage you to pause the video and try to see if you can figure it out yourself before I work through it. Well, to answer this question, how many gallons of water were in the hot tub before it started to leak, that's answering the same question as how much total hot water drained out.