Index: sources/gui/qml/dialogs/UfVolumeAdjustment.qml
===================================================================
diff -u -r773b0b83e72af1bdc50c2643459cb0ef19c02ee6 -r82b22f0f0ae1ff5b0a5c1524c7e91cc8d667b180
--- sources/gui/qml/dialogs/UfVolumeAdjustment.qml	(.../UfVolumeAdjustment.qml)	(revision 773b0b83e72af1bdc50c2643459cb0ef19c02ee6)
+++ sources/gui/qml/dialogs/UfVolumeAdjustment.qml	(.../UfVolumeAdjustment.qml)	(revision 82b22f0f0ae1ff5b0a5c1524c7e91cc8d667b180)
@@ -60,6 +60,9 @@
             onDidChange     : function(vValue) {
                 if ( ! _preWeight.valid ) { vTreatmentCreate.ufPreWeightRejectionReason = Variables.noRejectReason }
                 value = vValue
+
+                // zero weight if UF volume is entered
+                vTreatmentCreate.ultrafiltrationVolume = 0
             }
         }
 
@@ -81,6 +84,9 @@
             onDidChange     : function(vValue) {
                 if ( ! _estimatedTargetWeight.valid ) { vTreatmentCreate.ufEstimatedTargetWeightRejectionReason = Variables.noRejectReason }
                 value = vValue
+
+                // zero weight if UF volume is entered
+                vTreatmentCreate.ultrafiltrationVolume = 0
             }
         }
     }