Index: sources/gui/qml/compounds/TreatmentAdjustmentUltrafiltrationMetrics.qml
===================================================================
diff -u -rad57884fca3e8a0916b6d6bf51a69264b9b5263f -rdf8b367c378bcdbbffbd7ddc4ca297fdc3498039
--- sources/gui/qml/compounds/TreatmentAdjustmentUltrafiltrationMetrics.qml	(.../TreatmentAdjustmentUltrafiltrationMetrics.qml)	(revision ad57884fca3e8a0916b6d6bf51a69264b9b5263f)
+++ sources/gui/qml/compounds/TreatmentAdjustmentUltrafiltrationMetrics.qml	(.../TreatmentAdjustmentUltrafiltrationMetrics.qml)	(revision df8b367c378bcdbbffbd7ddc4ca297fdc3498039)
@@ -61,7 +61,7 @@
         width       : _left.width
         label       : qsTr("UF Volume Goal")
         unit        : Variables.unitVolume
-        value       : _root.rightValue.toFixed(Variables.ultrafiltrationPrecision)
+        value       : _root.rightValue?.toFixed(Variables.ultrafiltrationPrecision) ?? ""
         valueColor  : Colors.fluidText
     }
 }
Index: sources/gui/qml/dialogs/watersample/WaterSamplePage.qml
===================================================================
diff -u -r0bb5f08eb3570de6bff3ce67ca502db129b59096 -rdf8b367c378bcdbbffbd7ddc4ca297fdc3498039
--- sources/gui/qml/dialogs/watersample/WaterSamplePage.qml	(.../WaterSamplePage.qml)	(revision 0bb5f08eb3570de6bff3ce67ca502db129b59096)
+++ sources/gui/qml/dialogs/watersample/WaterSamplePage.qml	(.../WaterSamplePage.qml)	(revision df8b367c378bcdbbffbd7ddc4ca297fdc3498039)
@@ -85,7 +85,7 @@
             decimal         : Variables.chlorinePrecision
             isActive        : true
 
-            onDidChange     : {
+            function onDidChange(vValue) {
                 value = vValue
             }
         }