Index: sources/gui/qml/pages/pretreatment/connection/PreTreatmentUltrafiltration.qml
===================================================================
diff -u -r642f08650a7a88ad6a2305fdea6bd18365aab5c7 -r7ed22fc4ad6b61ea9a502f3e2eeca6d10fb0699d
--- sources/gui/qml/pages/pretreatment/connection/PreTreatmentUltrafiltration.qml	(.../PreTreatmentUltrafiltration.qml)	(revision 642f08650a7a88ad6a2305fdea6bd18365aab5c7)
+++ sources/gui/qml/pages/pretreatment/connection/PreTreatmentUltrafiltration.qml	(.../PreTreatmentUltrafiltration.qml)	(revision 7ed22fc4ad6b61ea9a502f3e2eeca6d10fb0699d)
@@ -72,14 +72,27 @@
         width   : parent.width / 2
         step    : 0.100
         stepSnap: true
-        ticks   : false
+        ticks   : true
         diameter: Variables.sliderCircleDiameter
         decimal : Variables.ultrafiltrationPrecision
         minimum : Variables.ultrafiltrationMinDef
-        maximum : vTreatmentRanges.treatmentRanges_Ultrafiltration_Volume_Max
+        maximum : 1//vTreatmentRanges.treatmentRanges_Ultrafiltration_Volume_Max
         minText.font.pixelSize: Fonts.fontPixelFluidText
         maxText.font.pixelSize: Fonts.fontPixelFluidText
         onPressed: isActive = true
     }
 
+    SliderArrows{ id:_volumeSliderSliderArrows
+        anchors.verticalCenter  : _volumeSlider.verticalCenter
+        anchors.right           : parent.right
+        anchors.rightMargin     : Variables.sliderAdjustButtonRightMargin
+        onIncrementValue        : {
+            _volumeSlider.isActive = true
+            _volumeSlider.incrementValue(true)
+        }
+        onDecrementValue        : {
+            _volumeSlider.isActive = true
+            _volumeSlider.decrementValue(true)
+        }
+    }
 }