Index: firmware/App/Controllers/Ultrafiltration.c
===================================================================
diff -u -rab9df65fbbb4f8387a5f2c0e7aa26bd234843150 -r387ea33c2e45705550905bc1a97e13db1cc95bf8
--- firmware/App/Controllers/Ultrafiltration.c	(.../Ultrafiltration.c)	(revision ab9df65fbbb4f8387a5f2c0e7aa26bd234843150)
+++ firmware/App/Controllers/Ultrafiltration.c	(.../Ultrafiltration.c)	(revision 387ea33c2e45705550905bc1a97e13db1cc95bf8)
@@ -233,10 +233,7 @@
         F32 balancingError          = compFreshFlowrate - compSpentFlowrate;                               // Error in g/min
 
         //Update compensate UF rate with the balancing chamber error
-        if ( getTDUFRate() > ZERO_RATE )
-        {
-            compUFrate = getTDUFRate() + balancingError;
-        }
+        compUFrate = getTDUFRate() + balancingError;
 
         // Update UF rate
         setConcentratePumpTargetSpeed( D76_PUMP, compUFrate, DOSING_CONT_VOLUME );