Index: firmware/App/Modes/ModeHeatDisinfect.c
===================================================================
diff -u -r8d83193871a40b55f42818fdb73911105a19f6bd -r2e7c696752c82d4195c4c43595da39b6e9e2ba73
--- firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 8d83193871a40b55f42818fdb73911105a19f6bd)
+++ firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 2e7c696752c82d4195c4c43595da39b6e9e2ba73)
@@ -1049,6 +1049,8 @@
             setValveState( VPD, VALVE_STATE_DRAIN_C_TO_NO );
             setValveState( VDR, VALVE_STATE_RECIRC_C_TO_NC );
             setValveState( VRC, VALVE_STATE_RECIRC_C_TO_NC );
+            setValveState( VRD1, VALVE_STATE_CLOSED );
+            setValveState( VRD2, VALVE_STATE_OPEN );
             signalROPumpHardStop();
             // Set the drain pump to control mode
             setDrainPumpTargetOutletFlowLPM( HEAT_DISINFECT_TARGET_RO_FLOW_LPM );