Index: firmware/App/Modes/ModeDrain.c
===================================================================
diff -u -r2c4dfa08ac8ead07939b4f6aba3b0073e0997706 -r2468e56fbecd26da713bc78535bd727f4b105fe1
--- firmware/App/Modes/ModeDrain.c	(.../ModeDrain.c)	(revision 2c4dfa08ac8ead07939b4f6aba3b0073e0997706)
+++ firmware/App/Modes/ModeDrain.c	(.../ModeDrain.c)	(revision 2468e56fbecd26da713bc78535bd727f4b105fe1)
@@ -98,7 +98,9 @@
     // NOTE: The target flow rate should be set prior to setting the start primary heater
     // because the initial guess in the heaters driver needs the target flow to calculate
     // the new PWMs for the main and small primary heaters
-    //setROPumpTargetFlowRate( TARGET_RO_FLOW_RATE_L, TARGET_RO_PRESSURE_PSI );
+#ifndef DISABLE_FLOW_CONTROL_TREATMENT
+    setROPumpTargetFlowRate( TARGET_RO_FLOW_RATE_L, TARGET_RO_PRESSURE_PSI );
+#endif
     startHeater( DG_PRIMARY_HEATER );
 }