Index: sources/gui/qml/pages/pretreatment/connection/PreTreatmentConnectionStack.qml
===================================================================
diff -u -ra5760947d3ed0d2748ba023a1c25e3c6aa0b1de1 -re35626298b657eeef3db1373c287765046955063
--- sources/gui/qml/pages/pretreatment/connection/PreTreatmentConnectionStack.qml	(.../PreTreatmentConnectionStack.qml)	(revision a5760947d3ed0d2748ba023a1c25e3c6aa0b1de1)
+++ sources/gui/qml/pages/pretreatment/connection/PreTreatmentConnectionStack.qml	(.../PreTreatmentConnectionStack.qml)	(revision e35626298b657eeef3db1373c287765046955063)
@@ -129,7 +129,7 @@
     Connections { target: vPreTreatmentAdjustmentUltrafiltrationInit
         function onAdjustmentTriggered          ( vValue ) {
             // the maximum ultrafiltration volume has to be set/revert regardless
-            vTreatmentUltrafiltration.maximum   = vPreTreatmentAdjustmentUltrafiltrationInit.volume
+            vTreatmentUltrafiltration.setVolume = vPreTreatmentAdjustmentUltrafiltrationInit.volume
             _preTreatmentUltrafiltration.reset  ( vPreTreatmentAdjustmentUltrafiltrationInit.volume )
 
             // but only if it has been accepted it will navigate