Index: firmware/App/Tasks/TaskPriority.c
===================================================================
diff -u -rf364406cd1f672078ca38ae8aad5bc508e9b64dd -r39fbf9fd993d5e735092cf4ad802d58d0f92f7b1
--- firmware/App/Tasks/TaskPriority.c	(.../TaskPriority.c)	(revision f364406cd1f672078ca38ae8aad5bc508e9b64dd)
+++ firmware/App/Tasks/TaskPriority.c	(.../TaskPriority.c)	(revision 39fbf9fd993d5e735092cf4ad802d58d0f92f7b1)
@@ -107,6 +107,7 @@
     // Monitor rinse pump
     execRinsePumpMonitor();
 
+    //TODO: revert back once HDF issue resolved.
     // Monitor Substituion pump
     //execSubstitutionPumpMonitor();