Index: firmware/App/Modes/ModeStandby.c
===================================================================
diff -u -re9e339870c5ed01230963f00d400331ab879c91f -re7e2fef9fda6c6e876f7aba1c8f837d8aa713392
--- firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision e9e339870c5ed01230963f00d400331ab879c91f)
+++ firmware/App/Modes/ModeStandby.c	(.../ModeStandby.c)	(revision e7e2fef9fda6c6e876f7aba1c8f837d8aa713392)
@@ -208,6 +208,7 @@
 {
     TD_STANDBY_STATE_T state     = STANDBY_WAIT_FOR_TREATMENT_STATE;
     DD_OP_MODE_T ddOperationMode = getDDOpMode();
+    F32 bicarbConvFactor = BICARBONATE_CONVERSION_FACTOR;
 
 //    switch ( dgOperationMode )
 //    {
@@ -259,6 +260,13 @@
         respRecord.venPresLimitAsymmetricmmHg = getSysConfigTreatmentParameterU32DefaultValue( TREATMENT_PARAM_VEN_PRES_LIMIT_ASYMMETRIC );
         respRecord.tmpPresLimitWindowmmHg     = getSysConfigTreatmentParameterU32DefaultValue( TREATMENT_PARAM_TMP_PRES_LIMIT_WINDOW );
         sendPressureLimitsChangeResponse( &respRecord );
+        // start DD pre-gen  // TODO
+        cmdStartPreGenerateDialysate( (F32)getTreatmentParameterU32( TREATMENT_PARAM_DIALYSATE_FLOW ),
+                                      getTreatmentParameterF32( TREATMENT_PARAM_DIALYSATE_TEMPERATURE ),
+                                      getTreatmentParameterF32( TREATMENT_PARAM_ACID_CONCENTRATE_CONV_FACTOR ),
+                                      bicarbConvFactor,
+                                      getTreatmentParameterU32( TREATMENT_PARAM_SODIUM ),
+                                      getTreatmentParameterU32( TREATMENT_PARAM_BICARBONATE ) );
         // Start treatment workflow with pretreatment mode
         requestNewOperationMode( MODE_PRET );
         treatStartReqReceived = FALSE;