Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r933a18d740285e70be9d00696ed0f5a5381bc8e4 -rf94085c6fbf817a07db7225d6748b5347dfb12d3
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 933a18d740285e70be9d00696ed0f5a5381bc8e4)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision f94085c6fbf817a07db7225d6748b5347dfb12d3)
@@ -160,7 +160,7 @@
 BOOL sendDGFillCommand( U32 fillToVolumeMl );
 
 // MSG_ID_DG_DRAIN_CMD
-BOOL sendDGDrainCommand( U32 drainToVolumeMl );
+BOOL sendDGDrainCommand( DRAIN_RESERVOIR_CMD_PAYLOAD_T *drainCmdPtr );
 
 // MSG_ID_STARTING_STOPPING_TREATMENT_CMD
 BOOL sendDGStartStopCommand( BOOL start );