 I didn't realize 30 different systems. Well, that's maybe a little. Well, like you said, I mean, you want to find out what the water is, and then you can customize the type of system we would need. Because you mentioned it's not all one size fits all. You kind of got to find whatever that customer needs. Oh, for sure, for sure. And one thing, too, is I'm all about efficiency. I do watch what goes down our drains. I mean, there's a lot of systems out there that...