Index: firmware/source/sys_main.c
===================================================================
diff -u -rb6411a65e0c78fe8b296c047a1d6940c55fa64f5 -r99e330b5b872f68fdf2d842bd0597e54044d9ba9
--- firmware/source/sys_main.c	(.../sys_main.c)	(revision b6411a65e0c78fe8b296c047a1d6940c55fa64f5)
+++ firmware/source/sys_main.c	(.../sys_main.c)	(revision 99e330b5b872f68fdf2d842bd0597e54044d9ba9)
@@ -99,6 +99,7 @@
 #include "StateFlushFilterDefeatured.h"
 #include "StateFlushPermeate.h"
 #include "StateInletPressureCheck.h"
+#include "SubstitutionPump.h"
 #include "SystemCommDD.h"
 #include "TaskBG.h"
 #include "TDInterface.h"
@@ -209,6 +210,7 @@
     initUltrafiltration();
     initRinsePump();
     initDryBiCart();
+    initSubstitutionPump();
     initMixingControl();
     initIntegrity();