 They use a chloramine, which is a chlorine-ammonia mixture here in the Denver metro area because chloramine does not dissipate like strictly straight chlorine does. So with chloramine in the drinking water, what that means is that that will also build up in the hot water heater too. So that means when we take a shower. See, we've got like a triple-edged sword coming at us if you really think about it regarding our water. You take a shower, you don't have a whole house full. That's the next thing you need, Scott.