Index: firmware/App/Controllers/ConcentratePumps.c
===================================================================
diff -u -r4779ed280eb2174e1be7a26dfd205fd4773b1d19 -r756177be99c8e0947f376248b9f0ec82159a4898
--- firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 4779ed280eb2174e1be7a26dfd205fd4773b1d19)
+++ firmware/App/Controllers/ConcentratePumps.c	(.../ConcentratePumps.c)	(revision 756177be99c8e0947f376248b9f0ec82159a4898)
@@ -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;