Index: firmware/App/Controllers/MixingControl.c
===================================================================
diff -u -r201fd50c9a5d2e5840bf6acfa77bfedf1d031338 -rd9abd635c7ca0e2f3d393f9568125df23b4d43bc
--- firmware/App/Controllers/MixingControl.c	(.../MixingControl.c)	(revision 201fd50c9a5d2e5840bf6acfa77bfedf1d031338)
+++ firmware/App/Controllers/MixingControl.c	(.../MixingControl.c)	(revision d9abd635c7ca0e2f3d393f9568125df23b4d43bc)
@@ -329,6 +329,8 @@
      mixingControlAcidControlInterval.override              = OVERRIDE_RESET;
 
      mixingControlDataPublicationTimerCounter               = 0;
+     lastBicarbMixVolume                                    = 0;
+     lastAcidMixVolume                                      = 0;
 
      initializePIController( PI_CONTROLLER_ID_BICARB_VOL, 0.0F,\
                                 getBicarbKpGainCoefficient(), getBicarbKiGainCoefficient(),\
@@ -363,7 +365,7 @@
  *************************************************************************/
 void execMixingControl( void )
 {
-    if( getCurrentBalancingChamberExecState() > BAL_CHAMBER_STATE_IDLE )
+    if ( getCurrentBalancingChamberExecState() > BAL_CHAMBER_STATE_IDLE )
     {
         updatedConcentrateControlInterval();