Index: sources/gui/qml/pages/posttreatment/PostTreatmentDisconnectStack.qml
===================================================================
diff -u -r9c0335bc7f5a2b591a9c6241b00ebb9510ea611a -r20765b9c0e05cd7c3b0a3320606eecc1d4fdfc91
--- sources/gui/qml/pages/posttreatment/PostTreatmentDisconnectStack.qml	(.../PostTreatmentDisconnectStack.qml)	(revision 9c0335bc7f5a2b591a9c6241b00ebb9510ea611a)
+++ sources/gui/qml/pages/posttreatment/PostTreatmentDisconnectStack.qml	(.../PostTreatmentDisconnectStack.qml)	(revision 20765b9c0e05cd7c3b0a3320606eecc1d4fdfc91)
@@ -61,6 +61,16 @@
         return _root.subStepIndex === PostTreatmentDisconnectStack.Step.DrainConsumable
     }
 
+    function continueEnabled() {
+        switch ( _root.subStepIndex ) {
+        case PostTreatmentDisconnectStack.Step.DisconnectPatient:
+            return true
+        case PostTreatmentDisconnectStack.Step.DrainConsumable:
+            return ! vTreatmentDryBicartDisconnect.depressurizeInProgress && ! vTreatmentDryBicartDisconnect.drainInProgress
+        default:
+        }
+    }
+
     // ----- Screens definitions
     PostTreatmentBase               { id: _postTreatmentDisconnectPatient; stepIndex: PostTreatmentDisconnectStack.Step.DisconnectPatient; subStepName: qsTr("Disconnect Patient BloodLines"); instructionBased: true}
     PostTreatmentDrainConsumables   { id: _postTreatmentDrainConsumables;  stepIndex: PostTreatmentDisconnectStack.Step.DrainConsumable;                            }
Index: sources/gui/qml/pages/posttreatment/PostTreatmentStack.qml
===================================================================
diff -u -r490a131c41be4c335a7fbd74ff79b5784fb1726c -r20765b9c0e05cd7c3b0a3320606eecc1d4fdfc91
--- sources/gui/qml/pages/posttreatment/PostTreatmentStack.qml	(.../PostTreatmentStack.qml)	(revision 490a131c41be4c335a7fbd74ff79b5784fb1726c)
+++ sources/gui/qml/pages/posttreatment/PostTreatmentStack.qml	(.../PostTreatmentStack.qml)	(revision 20765b9c0e05cd7c3b0a3320606eecc1d4fdfc91)
@@ -123,6 +123,18 @@
         }
     }
 
+    function continueEnabled() {
+        switch ( _root.stackStepIndex ) {
+        case PostTreatmentStack.Disconnect:
+            return _postTreatmentDisconnectStack.continueEnabled()
+        case PostTreatmentStack.Remove:
+        case PostTreatmentStack.Review:
+        case PostTreatmentStack.Disinfection: // fallthrough
+        default:
+            return true
+        }
+    }
+
     StepNavigationTitleBar { id: _titleBar
         stepIndex       : _root.stackStepIndex
         anchors {
@@ -137,6 +149,7 @@
         backVisible     : _root.backEnabled()
         width           : _root.width
         stepNames       : _root.stepNames
+        confirmEnabled  : _root.continueEnabled()
 
         subStepIndex    : isDisconnect ? _postTreatmentDisconnectStack.subStepIndex + 1 : 0