Index: firmware/App/Modes/ModeChemicalDisinfect.c
===================================================================
diff -u -r5109bb981cab2025fcb9de33e303d046085efa18 -r92ced71c0a4913ecfa71167baaa8a6ea775e17e6
--- firmware/App/Modes/ModeChemicalDisinfect.c	(.../ModeChemicalDisinfect.c)	(revision 5109bb981cab2025fcb9de33e303d046085efa18)
+++ firmware/App/Modes/ModeChemicalDisinfect.c	(.../ModeChemicalDisinfect.c)	(revision 92ced71c0a4913ecfa71167baaa8a6ea775e17e6)
@@ -118,7 +118,7 @@
 #define CHEM_DISINFECT_MINIMUM_TEMPERATURE_C        35.0F                                                      ///< Chemical disinfect target water temperature in C.
 #define CHEM_DISINFECT_HEATER_CONTROL_TEMPERATURE_C 45.0F                                                      ///< Chemical disinfect heater control water temperature in C.
 #define DISINFECT_CYCLE_PERIOD_MS                   ( 3 * SEC_PER_MIN * MS_PER_SECOND )                        ///< Time for each disinfectant filling and partial draining cycle. This is the time that the reservoir is full and the temperature is above the target.
-#define REQUIRED_DISINFECT_CYCLES                   2                                                          ///< Number of times each reservoir is to be filled with disinfectant.
+#define REQUIRED_DISINFECT_CYCLES                   3                                                          ///< Number of times each reservoir is to be filled with disinfectant.
 #define MAX_DISINFECT_STATE_TIME_MS                 ( 10 * SEC_PER_MIN * MS_PER_SECOND )                       ///< Maximum time in each reservoir disinfect cycle.
 
 // A PI control loop is used control the DRP speed while the reservoir is filling and draining, to maintain a constant level of disinfectant in the reservoir