Index: firmware/App/Controllers/BalancingChamber.h
===================================================================
diff -u -r1781335a8c1833fad17b275bf44c7f6675e68423 -rb13fc4db3591da73c3c63e81a69be3f9d0de2c3f
--- firmware/App/Controllers/BalancingChamber.h	(.../BalancingChamber.h)	(revision 1781335a8c1833fad17b275bf44c7f6675e68423)
+++ firmware/App/Controllers/BalancingChamber.h	(.../BalancingChamber.h)	(revision b13fc4db3591da73c3c63e81a69be3f9d0de2c3f)
@@ -31,12 +31,12 @@
 
 // ********** public definitions **********
 
-#define FRESH_DIAL_PRESSURE_MIN_PSIG                21.0F              ///< Minimum fresh dialysate pressure (D18) limit for balancing chamber fill operations.
-#define FRESH_DIAL_PRESSURE_MAX_PSIG                27.0F              ///< Maximum fresh dialysate pressure (D18) limit for balancing chamber fill operations.
-#define SPENT_DIAL_PRESSURE_MIN_PSIG                27.0F              ///< Minimum spent dialysate pressure (D51) limit for balancing chamber fill operations.
-#define SPENT_DIAL_PRESSURE_MAX_PSIG                31.0F              ///< Maximum spent dialysate pressure (D51) limit for balancing chamber fill operations.
-#define BC_FILL_PRESSURE_MIN_PSIG                   13.0F              ///< Minimum pressure (drop) during balancing chamber switching, indicates fill has been started / in progress.
-#define BC_FILL_PRESSURE_MAX_PSIG                   9.0F               ///< Maximum pressure (drop) during balancing chamber switching, indicates fill has been started / in progress.
+#define FRESH_DIAL_PRESSURE_MIN_PSIG                22.0F              ///< Minimum fresh dialysate pressure (D18) limit for balancing chamber fill operations.
+#define FRESH_DIAL_PRESSURE_MAX_PSIG                28.0F              ///< Maximum fresh dialysate pressure (D18) limit for balancing chamber fill operations.
+#define SPENT_DIAL_PRESSURE_MIN_PSIG                30.0F              ///< Minimum spent dialysate pressure (D51) limit for balancing chamber fill operations.
+#define SPENT_DIAL_PRESSURE_MAX_PSIG                40.0F              ///< Maximum spent dialysate pressure (D51) limit for balancing chamber fill operations.
+#define BC_FRESH_FILL_PRESSURE_PSIG                 15.0F              ///< Fresh side pressure (drop) during balancing chamber switching, indicates fill has been started / in progress.
+#define BC_SPENT_FILL_PRESSURE_PSIG                 29.0F              ///< Spent side pressure (drop) during balancing chamber switching, indicates fill has been started / in progress.
 #define BAL_CHAMBER_FILL_VOLUME_ML                  30.0F              ///< Balancing chamber fill/drain volume per batch operation.
 
 /// balancing chamber data structure