Index: firmware/App/Controllers/ConcentratePumps.h
===================================================================
diff -u -rff0edadf0c6f161a0a092ddaf94d1940d64f7d5e -rfcd31ba31379396ba18db1a7e13b9f26d7837958
--- firmware/App/Controllers/ConcentratePumps.h	(.../ConcentratePumps.h)	(revision ff0edadf0c6f161a0a092ddaf94d1940d64f7d5e)
+++ firmware/App/Controllers/ConcentratePumps.h	(.../ConcentratePumps.h)	(revision fcd31ba31379396ba18db1a7e13b9f26d7837958)
@@ -7,8 +7,8 @@
 *
 * @file    ConcentratePumps.h
 *
-* @author  (last)      Arpita Srivastava
-* @date    (last)      13-Jul-2026
+* @author  (last)      Jashwant Gantyada
+* @date    (last)      29-Jul-2026
 *
 * @author  (original)  Vinayakam Mani
 * @date    (original)  19-Sep-2024
@@ -32,11 +32,13 @@
 // ********** public definitions **********
 // For 150 RPM, Diener pump delivers 60ml/min
 #define CONCENTRATE_PUMP_MAX_SPEED              200.0F              ///< Maximum Diener pump speed for concentrate pump in mL/min
-#define DOSING_CONCENTRATE_PUMP_SPEED           100.0F              ///< Diener pump speed for acid and bicarb dosing pump speed in mL/min
+#define CONCENTRATE_PUMP_MIN_SPEED              20.0F               ///< Minimum Diener pump speed for concentrate pump in mL/min
+#define DOSING_ACID_CONCENTRATE_PUMP_SPEED      60.0F               ///< Diener pump speed for acid pump
+#define DOSING_CONCENTRATE_PUMP_SPEED           100.F               ///< Dosing pump speed for spent chamber fill for acid and bicarb pumps
 #define DRAIN_BICART_PUMP_SPEED                 200.0F              ///< Diener pump speed for cartridge drains at maximum speed in mL/min 
 
 #define DEFAULT_ACID_VOLUME_ML                  0.666666667F        ///< Acid concentrate volume in ml.
-#define DEFAULT_BICARB_VOLUME_ML                1.146666667F        ///< Bicarb concentrate volume in ml.
+#define DEFAULT_BICARB_VOLUME_ML                0.95F               ///< Bicarb concentrate volume in ml.
 
 #define DOSING_CONT_VOLUME                      0xFFFFFFFF          ///< Volume set to 0xFFFFFFFF enables continuous delivery based on the speed set.