Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -r4545a748791772cb1f21ea5e8fbbf661b7f8a062 -r4c20f6a3d8c8ff33d2dff4ba27e0732c7614378b
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 4545a748791772cb1f21ea5e8fbbf661b7f8a062)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 4c20f6a3d8c8ff33d2dff4ba27e0732c7614378b)
@@ -157,9 +157,9 @@
 
     // determine which load cell to use for fill volume - we want weight of inactive reservoir
 #ifndef BETA_V1_BUILD
-    if ( RESERVOIR_2 == getActiveReservoir() )
-#else
     if ( RESERVOIR_1 == getActiveReservoir() )
+#else
+    if ( RESERVOIR_2 == getActiveReservoir() )
 #endif
     {
         fillWeightLoadCell = LOAD_CELL_B1;