Index: sources/gui/qml/components/NotificationBar.qml
===================================================================
diff -u -re58be51c4aa52938af250db3ee579e98de08542c -r679f72813050ba2ca4d9161746ef3a219b562a1c
--- sources/gui/qml/components/NotificationBar.qml	(.../NotificationBar.qml)	(revision e58be51c4aa52938af250db3ee579e98de08542c)
+++ sources/gui/qml/components/NotificationBar.qml	(.../NotificationBar.qml)	(revision 679f72813050ba2ca4d9161746ef3a219b562a1c)
@@ -34,7 +34,7 @@
     visible : _text.text
     height  : Variables.notificationHeight
     color   : Colors.textNotificationNoneBg
-    //radius  : Variables.dialogRadius
+    radius  : 5
     anchors {
         bottom  : parent.bottom
         left    : parent.left
Index: sources/gui/qml/globals/Variables.qml
===================================================================
diff -u -r14c541d2b780b0a244bc84860aa565cf8dd7fe4b -r679f72813050ba2ca4d9161746ef3a219b562a1c
--- sources/gui/qml/globals/Variables.qml	(.../Variables.qml)	(revision 14c541d2b780b0a244bc84860aa565cf8dd7fe4b)
+++ sources/gui/qml/globals/Variables.qml	(.../Variables.qml)	(revision 679f72813050ba2ca4d9161746ef3a219b562a1c)
@@ -48,7 +48,7 @@
     readonly property int touchRectHeight                       : 85    //K:D //70
     readonly property int touchRectRadius                       : 45
 
-    readonly property int titleBottomPadding    : 25
+    readonly property int titleBottomPadding                    : 25
 
     readonly property int columnSpacing                         : 25    //K:D //20
 
Index: sources/gui/qml/pages/treatment/TreatmentBegin.qml
===================================================================
diff -u -r28f3f8dd18981262995386d29d3c2ab31418bfc4 -r679f72813050ba2ca4d9161746ef3a219b562a1c
--- sources/gui/qml/pages/treatment/TreatmentBegin.qml	(.../TreatmentBegin.qml)	(revision 28f3f8dd18981262995386d29d3c2ab31418bfc4)
+++ sources/gui/qml/pages/treatment/TreatmentBegin.qml	(.../TreatmentBegin.qml)	(revision 679f72813050ba2ca4d9161746ef3a219b562a1c)
@@ -15,8 +15,6 @@
 
 // Qt
 import QtQuick 2.12
-import QtQuick.Controls 2.12
-import QtQuick.Layouts 1.12
 
 // Project
 //  Qml imports
@@ -30,22 +28,23 @@
 ScreenItem { id: _root
     objectName: "_treatmentBegin"
 
-    signal clickedBack()
-    signal clickedStart()
+    property alias  ufVolume    : _volumeSlider.value
+    property alias  reasonText  : _notification.text
 
+    signal backClicked ()
+    signal startClicked()
+
     QtObject { id: _private
-        property int  decimal   : 3
         property real minimum   : 0.000
         property real maximum   : 8.000
-        property real value     : _volumeSlider.value
     }
 
     TopMenuBarCreateTreatment { id: _topMenuBar
         anchors.top: parent.top
         anchors.left: parent.left
         width: parent.width
         onClickedBack: {
-            _root.clickedBack();
+            _root.backClicked();
         }
         state: "begin"
     }
@@ -79,7 +78,7 @@
     Text { id: _textValue
         visible : true
         color   : "white"
-        text    : _private.value.toFixed(_private.decimal)
+        text    : _root.ufVolume.toFixed(vTreatmentUltrafiltration.precision)
         font {
             pixelSize  : Fonts.createTreatmentFontSize
         }
@@ -103,7 +102,7 @@
         stepSnap: true
         ticks   : false
         diameter: Variables.sliderCircleDiameter
-        decimal : _private.decimal
+        decimal : vTreatmentUltrafiltration.precision
         minimum : _private.minimum
         maximum : _private.maximum
         minText.font.pixelSize: Fonts.fontPixelFluidText
@@ -128,11 +127,16 @@
             font.pixelSize: Fonts.fontPixelUltrafiltrationAdjustmentButton
         }
         onClicked: {
-            clickedStart(vTreatmentAdjustmentUltrafiltrationInit.doAdjustment(_volumeSlider.value))
+            _root.startClicked()
         }
     }
 
+    NotificationBar { id: _notification
+        iconVisible: false
+    }
+
     onVisibleChanged: {
+        _notification.text = ""
         if (visible) {
             _mainMenu.hidden = true
         }
Index: sources/gui/qml/pages/treatment/TreatmentStack.qml
===================================================================
diff -u -rccb91da4becded9a7ad409b758bba96784d9feba -r679f72813050ba2ca4d9161746ef3a219b562a1c
--- sources/gui/qml/pages/treatment/TreatmentStack.qml	(.../TreatmentStack.qml)	(revision ccb91da4becded9a7ad409b758bba96784d9feba)
+++ sources/gui/qml/pages/treatment/TreatmentStack.qml	(.../TreatmentStack.qml)	(revision 679f72813050ba2ca4d9161746ef3a219b562a1c)
@@ -128,8 +128,8 @@
     }
 
     TreatmentBegin             { id:       _treatmentBegin
-        onClickedBack           : {vTreatmentCreate.doRequestPop()       }
-        onClickedStart          : {vTreatmentCreate.doStartTreatment();  }
+        onBackClicked           : {vTreatmentCreate.doRequestPop()       }
+        onStartClicked          : {vTreatmentAdjustmentUltrafiltrationInit.doAdjustment(_treatmentBegin.volume) }
     }
 
     //// Treatment Adjustment Dialogs
@@ -233,6 +233,21 @@
         }
     }
 
+    Connections { target: vTreatmentAdjustmentUltrafiltrationInit
+        onAdjustmentTriggered   : {
+            // the maximum ultrafiltration volume has to be set/revert regardless
+            vTreatmentUltrafiltration.maximum = vTreatmentAdjustmentUltrafiltrationInit.volume
+            _treatmentBegin.ufVolume          = vTreatmentAdjustmentUltrafiltrationInit.volume
+            // but only if it has been accepted it will navigate
+            if (vTreatmentAdjustmentUltrafiltrationInit.adjustment_Accepted) {
+                vTreatmentCreate.doStartTreatment()
+            }
+            else {
+                _treatmentBegin.reasonText  = vTreatmentAdjustmentUltrafiltrationInit.text()
+            }
+        }
+    }
+
     Connections { target: vTreatmentAdjustmentUltrafiltrationState
         onAdjustmentTriggered   : {
             if ( vTreatmentAdjustmentUltrafiltrationState.adjustment_Accepted ) {