Index: firmware/App/DGCommon.h
===================================================================
diff -u -rf907c79b56ee0b8e5dad7770ab11a3abaeb821c0 -rfbecceef31f59ffc46d960803b1123e2ea491c6c
--- firmware/App/DGCommon.h	(.../DGCommon.h)	(revision f907c79b56ee0b8e5dad7770ab11a3abaeb821c0)
+++ firmware/App/DGCommon.h	(.../DGCommon.h)	(revision fbecceef31f59ffc46d960803b1123e2ea491c6c)
@@ -56,6 +56,7 @@
 //    #define NEW_FMD_FLOW_SENSOR             1            // Not needed
     #define DISABLE_HEATERS_EFFICIENCY      1
     #define DISABLE_HEAT_DISINFECT_CONDUCTIVITY 1           // Implement
+    #define DISABLE_CONC_PUMPS             1
 
     // Turn these flags on to disable dialysate mixing
     #define DISABLE_DIALYSATE_CHECK         1  // Disabled for Tom  // Implement