Index: dialin/dg/dialysate_generator.py
===================================================================
diff -u -r45ef5740d52d0f744175ace8312d62c023abc1b9 -rfe03544450ebc15c625d2521ac6b84384ce85b79
--- dialin/dg/dialysate_generator.py	(.../dialysate_generator.py)	(revision 45ef5740d52d0f744175ace8312d62c023abc1b9)
+++ dialin/dg/dialysate_generator.py	(.../dialysate_generator.py)	(revision fe03544450ebc15c625d2521ac6b84384ce85b79)
@@ -368,6 +368,7 @@
         Constraints:
             Must be logged into DG.
             Transition from current to requested op mode must be legal.
+            For transitioning to POST again, you can only be in Standby Mode or Solo Mode
 
         @param new_mode:  ID of operation mode to transition to (see DGOpModes enum for options)
 
Index: dialin/hd/hemodialysis_device.py
===================================================================
diff -u -r45ef5740d52d0f744175ace8312d62c023abc1b9 -rfe03544450ebc15c625d2521ac6b84384ce85b79
--- dialin/hd/hemodialysis_device.py	(.../hemodialysis_device.py)	(revision 45ef5740d52d0f744175ace8312d62c023abc1b9)
+++ dialin/hd/hemodialysis_device.py	(.../hemodialysis_device.py)	(revision fe03544450ebc15c625d2521ac6b84384ce85b79)
@@ -344,6 +344,7 @@
         Constraints:
             Must be logged into HD.
             Transition from current to requested op mode must be legal.
+            NOTE: for POST the HD device shall be in Standby Mode
 
         @param new_mode:  ID of operation mode to transition to
             HD_OP_MODE_FAULT = 0
Index: tests/dg_tests.py
===================================================================
diff -u -rb803339146ffba3fc570965600896df98816099b -rfe03544450ebc15c625d2521ac6b84384ce85b79
--- tests/dg_tests.py	(.../dg_tests.py)	(revision b803339146ffba3fc570965600896df98816099b)
+++ tests/dg_tests.py	(.../dg_tests.py)	(revision fe03544450ebc15c625d2521ac6b84384ce85b79)
@@ -734,7 +734,7 @@
 
     #run_flush_mode()
 
-    run_chemical_disinfect()
+    #run_chemical_disinfect()
 
     #run_chem_disinfect_flush_mode()
 
@@ -772,3 +772,6 @@
 
     #hd.cmd_hd_software_reset_request()
 
+    #dg.cmd_dg_set_operation_mode(2)
+    hd.cmd_hd_set_operation_mode(2)
+