Index: firmware/App/Controllers/BloodFlow.c
===================================================================
diff -u -rc9df9f42e294adae397a57bf83c2a67fa831b164 -r60e0fc291e3897ab9b86aee7181eeb6d6dd7d35f
--- firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision c9df9f42e294adae397a57bf83c2a67fa831b164)
+++ firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision 60e0fc291e3897ab9b86aee7181eeb6d6dd7d35f)
@@ -49,10 +49,11 @@
 #define MAX_BLOOD_PUMP_PWM_DUTY_CYCLE       0.89            ///< Controller will error if PWM duty cycle > 90%, so set max to 89%
 #define MIN_BLOOD_PUMP_PWM_DUTY_CYCLE       0.10            ///< Controller will error if PWM duty cycle < 10%, so set min to 10%
 
+#define BP_CONTROL_INTERVAL_SEC             5               ///< Blood pump control interval (in seconds).
 /// Interval (ms/task time) at which the blood pump is controlled.
-static const U32 BP_CONTROL_INTERVAL      = ( 10000 / TASK_GENERAL_INTERVAL );
-#define BP_P_COEFFICIENT                    0.00035         ///< P term for blood pump control
-#define BP_I_COEFFICIENT                    0.00035         ///< I term for blood pump control
+static const U32 BP_CONTROL_INTERVAL      = ( BP_CONTROL_INTERVAL_SEC * MS_PER_SECOND / TASK_GENERAL_INTERVAL );
+#define BP_P_COEFFICIENT                    0.0001          ///< P term for blood pump control
+#define BP_I_COEFFICIENT                    0.001           ///< I term for blood pump control
 
 #define BP_HOME_RATE                        100             ///< Target pump speed (in estimate mL/min) for homing.
 #define BP_HOME_TIMEOUT_MS                  10000           ///< Maximum time allowed for homing to complete (in ms).
@@ -107,7 +108,7 @@
 #define SIZE_OF_ROLLING_AVG                 ( ( MS_PER_SECOND / TASK_PRIORITY_INTERVAL ) * 10 )
 
 /// Blood flow sensor signal strength low alarm persistence.
-#define FLOW_SIG_STRGTH_ALARM_PERSIST       ( 5 * MS_PER_SECOND )
+#define FLOW_SIG_STRGTH_ALARM_PERSIST       ( BP_CONTROL_INTERVAL_SEC * MS_PER_SECOND )
 #define MIN_FLOW_SIG_STRENGTH               0.9             ///< Minimum flow sensor signal strength (90%).
 
 /// Blood flow fast read timeout alarm persistence.