Index: firmware/App/Modes/ModeChemicalDisinfect.c
===================================================================
diff -u -r86a4c29675dc34118aa9d4b55ead1d710a45ec10 -r5026ed04bc2977e2a6d8c854b1e356cbfb2febea
--- firmware/App/Modes/ModeChemicalDisinfect.c	(.../ModeChemicalDisinfect.c)	(revision 86a4c29675dc34118aa9d4b55ead1d710a45ec10)
+++ firmware/App/Modes/ModeChemicalDisinfect.c	(.../ModeChemicalDisinfect.c)	(revision 5026ed04bc2977e2a6d8c854b1e356cbfb2febea)
@@ -179,6 +179,10 @@
 static BOOL haveDrainParamsBeenInit[ NUM_OF_DG_RESERVOIRS ];                                                   ///< Boolean flag to indicate whether the drain parameters have been reset or not.
 
 #ifndef _RELEASE_
+/* Nelson Labs is in charge of testing the efficacy of the disinfects (heat and chem). The codes that contain the name Nelson are used to
+ * support the special conditions that are needed to be created to test the disinfects. The support codes are not compiled in a release
+ * build.
+ */
 static NELSON_SUPPORT_T nelsonSupport;                                                                         ///< Nelson support.
 #endif