Index: sources/gui/qml/pages/pretreatment/connection/PreTreatmentUltrafiltration.qml
===================================================================
diff -u -re454ad00d5e1528b8c49f1d5f33a91f7231f1056 -rdcb88e63735118d1f11b2234752485b7cd71fd57
--- sources/gui/qml/pages/pretreatment/connection/PreTreatmentUltrafiltration.qml	(.../PreTreatmentUltrafiltration.qml)	(revision e454ad00d5e1528b8c49f1d5f33a91f7231f1056)
+++ sources/gui/qml/pages/pretreatment/connection/PreTreatmentUltrafiltration.qml	(.../PreTreatmentUltrafiltration.qml)	(revision dcb88e63735118d1f11b2234752485b7cd71fd57)
@@ -76,7 +76,7 @@
         ticks   : false
         diameter: Variables.sliderCircleDiameter
         decimal : Variables.ultrafiltrationPrecision
-        minimum : vTreatmentRanges.treatmentRanges_Ultrafiltration_Volume_Min
+        minimum : Variables.ultrafiltrationMinDef
         maximum : vTreatmentRanges.treatmentRanges_Ultrafiltration_Volume_Max
         minText.font.pixelSize: Fonts.fontPixelFluidText
         maxText.font.pixelSize: Fonts.fontPixelFluidText