Index: sources/gui/qml/pages/pretreatment/PreTreatmentConsumablesStack.qml
===================================================================
diff -u -r27cc308ff5113a9386899d3c8f8b29962a8498e1 -rf68b226e67eb500758ee94fe015df48931240013
--- sources/gui/qml/pages/pretreatment/PreTreatmentConsumablesStack.qml	(.../PreTreatmentConsumablesStack.qml)	(revision 27cc308ff5113a9386899d3c8f8b29962a8498e1)
+++ sources/gui/qml/pages/pretreatment/PreTreatmentConsumablesStack.qml	(.../PreTreatmentConsumablesStack.qml)	(revision f68b226e67eb500758ee94fe015df48931240013)
@@ -54,21 +54,21 @@
     }
 
     Connections { target: vPreTreatmentStates
-        onSelfTestConsumables_installChanged        : { page( _preTreatmentConsumablesInstall   , vselfTestConsumables_install  )}
-        onSelfTestConsumables_waterQualityEntered   : {/*_preTreatmentConsumablesSelfTest.checkList.setItem( 0, vselfTestConsumables_waterQuality)*/}
-        onSelfTestConsumables_biCarbPumpEntered     : { _preTreatmentConsumablesSelfTest.checkList.setItem( 0, vselfTestConsumables_biCarbPump     )}
-        onSelfTestConsumables_acidPumpEntered       : { _preTreatmentConsumablesSelfTest.checkList.setItem( 1, vselfTestConsumables_acidPump       )}
+        function onSelfTestConsumables_installChanged       ( vValue ) { page(  _preTreatmentConsumablesInstall                      , vValue       )}
+        function onSelfTestConsumables_waterQualityEntered  ( vValue ) {/*      _preTreatmentConsumablesSelfTest.checkList.setItem( 0, vValue )*/    }
+        function onSelfTestConsumables_biCarbPumpEntered    ( vValue ) {        _preTreatmentConsumablesSelfTest.checkList.setItem( 0, vValue       )}
+        function onSelfTestConsumables_acidPumpEntered      ( vValue ) {        _preTreatmentConsumablesSelfTest.checkList.setItem( 1, vValue       )}
     }
 
     Connections { target: _preTreatmentConsumablesInstall
-        onConfirmClicked                            : {
+        function onConfirmClicked                           ( vValue ) {
             vPreTreatmentAdjustmentConsumablesConfirm.doConfirm()
             page( _preTreatmentConsumablesSelfTest )
         }
     }
 
     Connections { target: _preTreatmentConsumablesSelfTest
-        onConfirmClicked                            : { /* the state shall automatically change after user confirms the consumables installation */ }
+        function onConfirmClicked                           ( vValue ) { /* the state shall automatically change after user confirms the consumables installation */ }
     }
 
     onVisibleChanged: {