Index: firmware/App/Tasks/TaskGeneral.c
===================================================================
diff -u -r98f2b3df325b323494f2e110f71a4163d4df7fbd -rd9abd635c7ca0e2f3d393f9568125df23b4d43bc
--- firmware/App/Tasks/TaskGeneral.c	(.../TaskGeneral.c)	(revision 98f2b3df325b323494f2e110f71a4163d4df7fbd)
+++ firmware/App/Tasks/TaskGeneral.c	(.../TaskGeneral.c)	(revision d9abd635c7ca0e2f3d393f9568125df23b4d43bc)
@@ -30,6 +30,7 @@
 #include "PermeateTank.h"
 #include "RinsePump.h"
 #include "ROPump.h"
+#include "SubstitutionPump.h"
 #include "SystemCommDD.h"
 #include "TaskGeneral.h"
 #include "WatchdogMgmt.h"
@@ -81,7 +82,7 @@
     execConcentratePumpMonitor();
 
     // Monitor DD voltages
-    ///execVoltagesMonitor();
+    execVoltagesMonitor();
 
     // run DD operation mode state machine
     execDDOperationModes();
@@ -104,6 +105,9 @@
         execDryBicart();
     }
 
+    // Control Substitution pump
+    execSubstitutionPumpController();
+
     // Control closed loop mixing of bicarb and acid
     execMixingControl();