Index: firmware/App/Controllers/Pressures.c
===================================================================
diff -u -r380d39a409fc779c2e2656499627c90e9d858cf9 -r0aa81ea20361be151e741734792be2ab4db3b9ef
--- firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision 380d39a409fc779c2e2656499627c90e9d858cf9)
+++ firmware/App/Controllers/Pressures.c	(.../Pressures.c)	(revision 0aa81ea20361be151e741734792be2ab4db3b9ef)
@@ -37,7 +37,7 @@
 
 // ********** private definitions **********
 
-#define PUMP_PRESSURE_ZERO                          777                                             ///< ADC counts equivalent to 0 PSI for pump in/out pressure sensors.
+#define PUMP_PRESSURE_ZERO                          759                                             ///< ADC counts equivalent to 0 PSI for pump in/out pressure sensors.
 #define PUMP_PRESSURE_PSIA_PER_COUNT                0.06583F                                        ///< PSIA per ADC count conversion factor for pump in/out pressure sensors.
 #define PUMP_PRESSURE_PSIA_TO_PSI_OFFSET            14.7F                                           ///< Subtract this offset to convert PSIA to PSI.
 #define ONE_BAR_TO_PSI_CONVERSION                   14.5F                                           ///< 1 bar to PSI conversion.