Index: firmware/source/sys_main.c
===================================================================
diff -u -r3b84fc79b2fd6c7a447e54e4fe821447f613af59 -r7a9cfc7590be84e1c4af6a04ca92c598d49cf9de
--- firmware/source/sys_main.c	(.../sys_main.c)	(revision 3b84fc79b2fd6c7a447e54e4fe821447f613af59)
+++ firmware/source/sys_main.c	(.../sys_main.c)	(revision 7a9cfc7590be84e1c4af6a04ca92c598d49cf9de)
@@ -101,6 +101,7 @@
 #include "StateFlushFilterDefeatured.h"
 #include "StateFlushPermeate.h"
 #include "StateInletPressureCheck.h"
+#include "SubstitutionPump.h"
 #include "SystemCommDD.h"
 #include "TaskBG.h"
 #include "TDInterface.h"
@@ -212,6 +213,7 @@
     initUltrafiltration();
     initRinsePump();
     initDryBiCart();
+    initSubstitutionPump();
     initMixingControl();
     initIntegrity();