Index: firmware/App/Modes/Dialysis.c
===================================================================
diff -u -r9798f57bc288270fe058fe098a76088cbb34d50c -r6811f0251b0fa7d27c3e6d5eb16ade2bc88a3204
--- firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision 9798f57bc288270fe058fe098a76088cbb34d50c)
+++ firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision 6811f0251b0fa7d27c3e6d5eb16ade2bc88a3204)
@@ -1098,7 +1098,8 @@
 static void updateUFVolumes( void )
 {
     DG_RESERVOIR_ID_T activeRes = getDGActiveReservoir();
-    F32 latestResVolume = getReservoirWeightSmallFilter( activeRes );
+    LOAD_CELL_ID_T lc = ( activeRes == DG_RESERVOIR_1 ? LOAD_CELL_RESERVOIR_1_PRIMARY : LOAD_CELL_RESERVOIR_2_PRIMARY );
+    F32 latestResVolume = getLoadCellWeightInGrams( lc );
 #ifndef DISABLE_UF_ALARMS
     F32 deltaVolume = latestResVolume - resFinalVolume[ activeRes ];