Index: firmware/App/Modes/Dialysis.c
===================================================================
diff -u -r515a40fb83e3fc13384dae12dba25b45aeeea904 -rbd4cfd6101ef41d898e36aed764fd15f01ec7255
--- firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision 515a40fb83e3fc13384dae12dba25b45aeeea904)
+++ firmware/App/Modes/Dialysis.c	(.../Dialysis.c)	(revision bd4cfd6101ef41d898e36aed764fd15f01ec7255)
@@ -240,6 +240,11 @@
     // send dialysate outlet pump latest UF volumes
     setDialOutUFVolumes( refUFVolume, measUFVolume );
 
+    // set valves for dialysis
+    setValvePosition( VDI, VALVE_POSITION_B_OPEN );
+    setValvePosition( VDO, VALVE_POSITION_B_OPEN );
+    setValvePosition( VBA, VALVE_POSITION_B_OPEN );
+    setValvePosition( VBV, VALVE_POSITION_B_OPEN );
     // restart pumps
 #ifndef RUN_PUMPS_OPEN_LOOP
     setBloodPumpTargetFlowRate( setBloodFlowRate, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_CLOSED_LOOP );