It doesn’t matter if it’s a batch machine or inline cleaner. Chemistry for both suppliers third party laps NVR testing multiple residues and that’s the best way to evaluate that. Basically, they take a sample monthly and at some point when that bath is loaded, you can measure that off of cycles or pump run time if it’s an inline machine, to determine the best time to change that out. Typically, batch machine chemistry lasts a long time in the batch machine before you have to clean it out after bath load.