Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -r4cb5ba7d20bf064c8bf1238c335ae01a92f669ee -r9100ec6e93d7a5826cfc185533050155c9f37f3f
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 4cb5ba7d20bf064c8bf1238c335ae01a92f669ee)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 9100ec6e93d7a5826cfc185533050155c9f37f3f)
@@ -140,7 +140,7 @@
  *************************************************************************/
 void initPreTreatmentMode( void )
 {
-    int reservoirIndex = 0;
+    U32 reservoirIndex = 0;
 
     currentPreTreatmentState = HD_PRE_TREATMENT_WATER_SAMPLE_STATE;
     currentReservoirMgmtState = PRE_TREATMENT_RESERVOIR_MGMT_START_STATE;