Index: firmware/App/Modes/Prime.c
===================================================================
diff -u -ra0e1bd7c36f379280db50285f23ae5c881681d8d -reaffb84a318bb78cbc28d8867f158ba35e19b552
--- firmware/App/Modes/Prime.c	(.../Prime.c)	(revision a0e1bd7c36f379280db50285f23ae5c881681d8d)
+++ firmware/App/Modes/Prime.c	(.../Prime.c)	(revision eaffb84a318bb78cbc28d8867f158ba35e19b552)
@@ -755,6 +755,7 @@
         setValvePosition( VDI, VALVE_POSITION_C_CLOSE );
         bubbleClearActive = TRUE;
     }
+    // TODO - could also check for valve closed too long here (maybe > 2sec) in case not opening based on pressure
     if ( ( TRUE == bubbleClearActive ) && ( getMeasuredVenousPressure() > VENOUS_PRESSURE_BUBBLE_CLEAR_MAX_MMHG ) )
     {
         // Pressure max reached, release pressure