Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -re3839e10decfadf12a8fb2b9f8c049d8a30e945b -r166097c99fbbe8d7a73a357891409a430178b7f4
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision e3839e10decfadf12a8fb2b9f8c049d8a30e945b)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 166097c99fbbe8d7a73a357891409a430178b7f4)
@@ -54,7 +54,7 @@
 #define RO_PUMP_800_ML_PER_MIN                          800.0F                                               ///< RO pump speed of 800.0 mL/minute.
 #define TARGET_RO_FLOW_RATE_IN_PAUSE_L                    0.8F                                               ///< Target flow rate for RO pump during pause in liters.
 #define MILLILITERS_PER_LITER                           1000.0F                                              ///< One liter is 1000 milliliters
-#define ACID_PUMP_23_ML_PER_MIN                         23.0F                                                ///< Acid pump speed of 23.0 mL/minute.
+#define ACID_PUMP_23_ML_PER_MIN                         22.7F //23.0F                                                ///< Acid pump speed of 23.0 mL/minute.
 #define BICARB_PUMP_40_ML_PER_MIN                       40.0F                                                ///< Bicarb pump speed of 40.0 mL/minute.
 #define CONCENTRATE_PUMP_40_ML_PER_MIN                  40.0F                                                ///< Concentrate pump speed of 40.0 mL/minute.