Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -rbbf1e3736be03a4f041ace57e0f95e23caf472dd -r4545a748791772cb1f21ea5e8fbbf661b7f8a062
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision bbf1e3736be03a4f041ace57e0f95e23caf472dd)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 4545a748791772cb1f21ea5e8fbbf661b7f8a062)
@@ -156,7 +156,11 @@
 
 
     // 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() )
+#endif
     {
         fillWeightLoadCell = LOAD_CELL_B1;
     }