Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -r32e90c9bae6d193e54c3af4c64419cae502f5beb -rb85e597fdac05e5820fd9131ae0a3444640df0e1
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 32e90c9bae6d193e54c3af4c64419cae502f5beb)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision b85e597fdac05e5820fd9131ae0a3444640df0e1)
@@ -1023,6 +1023,7 @@
 
     // Check for measured speed and target speed direction after checking the tolerance. Even if the absolute values are in range the direction
     // of target and measured speed should be matching. The target speed internally is always positive so use direction instead.
+    // The direction of the target pump and measured speed should agree on.
     if ( ( concentratePumps[ pumpId ].direction != CONCENTRATE_PUMP_REVERSE_DIR ) && ( getMeasuredPumpSpeedMLPM( pumpId ) < 0.0F ) )
     {
         isCpSpeedOut = TRUE;