Index: firmware/App/Controllers/BalancingChamber.h
===================================================================
diff -u -r977f03e20990ed5579160b9b927df1c0f2428101 -r1b110e3b2462fda74aa8f2811aad9ce61cb80309
--- firmware/App/Controllers/BalancingChamber.h	(.../BalancingChamber.h)	(revision 977f03e20990ed5579160b9b927df1c0f2428101)
+++ firmware/App/Controllers/BalancingChamber.h	(.../BalancingChamber.h)	(revision 1b110e3b2462fda74aa8f2811aad9ce61cb80309)
@@ -31,10 +31,10 @@
 
 // ********** public definitions **********
 
-#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 FRESH_DIAL_PRESSURE_MIN_PSIG                23.0F              ///< 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                33.0F              ///< Minimum spent dialysate pressure (D51) limit for balancing chamber fill operations.
+#define SPENT_DIAL_PRESSURE_MAX_PSIG                37.0F              ///< 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.