Index: firmware/App/Modes/ModeChemicalDisinfect.c
===================================================================
diff -u -r22176ce95e49213c48454f34ddf5d29b8109f2cb -r46ece7f3b8683d14151ca64a010b9d02846deab6
--- firmware/App/Modes/ModeChemicalDisinfect.c	(.../ModeChemicalDisinfect.c)	(revision 22176ce95e49213c48454f34ddf5d29b8109f2cb)
+++ firmware/App/Modes/ModeChemicalDisinfect.c	(.../ModeChemicalDisinfect.c)	(revision 46ece7f3b8683d14151ca64a010b9d02846deab6)
@@ -854,7 +854,7 @@
         // until reservoir 1 is filled up and the tubing might expand or leak.
         // Before checking whether reservoir 1 is filled pre-maturely, we have to make sure reservoir 1 is drained completely to make
         // sure the extra volume that is read is not because of previous water that is being drained currently and it is above 500 mL
-        if ( ( volume > RSRVRS_PARTIAL_FILL_VOL_ML ) && ( 0 == drainPumpRPM ) )
+        if ( ( volume >= RSRVRS_PARTIAL_FILL_VOL_ML ) && ( 0 == drainPumpRPM ) )
         {
             prevChemDisinfectState      = state;
             alarmDetectedPendingTrigger = ALARM_ID_DG_INVALID_LOAD_CELL_VALUE;
@@ -1548,7 +1548,7 @@
         // until reservoir 1 is filled up and the tubing might expand or leak.
         // Before checking whether reservoir 1 is filled pre-maturely, we have to make sure reservoir 1 is drained completely to make
         // sure the extra volume that is read is not because of previous water that is being drained currently and it is above 500 mL
-        if ( ( volume > RSRVRS_PARTIAL_FILL_VOL_ML ) && ( 0 == drainPumpRPM ) )
+        if ( ( volume >= RSRVRS_PARTIAL_FILL_VOL_ML ) && ( 0 == drainPumpRPM ) )
         {
             prevChemDisinfectState      = state;
             alarmDetectedPendingTrigger = ALARM_ID_DG_INVALID_LOAD_CELL_VALUE;
@@ -1640,7 +1640,7 @@
         // until reservoir 1 is filled up and the tubing might expand or leak.
         // Before checking whether reservoir 1 is filled pre-maturely, we have to make sure reservoir 1 is drained completely to make
         // sure the extra volume that is read is not because of previous water that is being drained currently and it is above 500 mL
-        if ( ( volume > RSRVRS_PARTIAL_FILL_VOL_ML ) && ( 0 == drainPumpRPM ) )
+        if ( ( volume >= RSRVRS_PARTIAL_FILL_VOL_ML ) && ( 0 == drainPumpRPM ) )
         {
             prevChemDisinfectState      = state;
             alarmDetectedPendingTrigger = ALARM_ID_DG_INVALID_LOAD_CELL_VALUE;