 If it's wet, change it. So I've already been through most all of those already. That's good. People forget about the differentials all the time. Those little differentials, they forget about them all the time. And they're expensive. Right, right. Yeah. I've already gone through most all of those, so give me a couple of ones I do need to check into. I appreciate that. My other question. I work here. I run a sewer treatment plant. And we just purchased two trailer-mounted diesel trash pumps.