Index: firmware/App/Controllers/DryBiCart.c
===================================================================
diff -u -ra08bda2a0610a27e3147fed72e1aca7b798a1bb0 -rb6411a65e0c78fe8b296c047a1d6940c55fa64f5
--- firmware/App/Controllers/DryBiCart.c	(.../DryBiCart.c)	(revision a08bda2a0610a27e3147fed72e1aca7b798a1bb0)
+++ firmware/App/Controllers/DryBiCart.c	(.../DryBiCart.c)	(revision b6411a65e0c78fe8b296c047a1d6940c55fa64f5)
@@ -1235,9 +1235,6 @@
         // open bypass valve
         setValveState( D34_VALV, VALVE_STATE_OPEN );
 
-        // open DD drain
-        setValveState( D53_VALV, VALVE_STATE_OPEN );
-
         // open iofp drain valve
         setValveState( M12_VALV, VALVE_STATE_OPEN );
 
Index: firmware/App/Controllers/MixingControl.c
===================================================================
diff -u -ra08bda2a0610a27e3147fed72e1aca7b798a1bb0 -rb6411a65e0c78fe8b296c047a1d6940c55fa64f5
--- firmware/App/Controllers/MixingControl.c	(.../MixingControl.c)	(revision a08bda2a0610a27e3147fed72e1aca7b798a1bb0)
+++ firmware/App/Controllers/MixingControl.c	(.../MixingControl.c)	(revision b6411a65e0c78fe8b296c047a1d6940c55fa64f5)
@@ -730,7 +730,7 @@
             if ( fabs ( bicarbConductivity - measuredBicarbConductivity ) > BICARB_DEADBAND_CONTROL )
             {
                 bicarbMixVol = runPIController( PI_CONTROLLER_ID_BICARB_VOL, bicarbConductivity, measuredBicarbConductivity );
-                //Set bicarb mix vol only if its above dead band threshold, else use the previous set vlaue
+                //Set bicarb mix vol only if its above dead band threshold, else use the previous set value
                 // Note: bicarb volume will impact the D10 pump , if volume is set to 0 , then D10 doesn't run
                 setBicarbMixVol( bicarbMixVol );
             }
Index: firmware/source/sys_main.c
===================================================================
diff -u -r8bd2386ed976da1b73ad6e29ddafa5e493b29964 -rb6411a65e0c78fe8b296c047a1d6940c55fa64f5
--- firmware/source/sys_main.c	(.../sys_main.c)	(revision 8bd2386ed976da1b73ad6e29ddafa5e493b29964)
+++ firmware/source/sys_main.c	(.../sys_main.c)	(revision b6411a65e0c78fe8b296c047a1d6940c55fa64f5)
@@ -209,6 +209,7 @@
     initUltrafiltration();
     initRinsePump();
     initDryBiCart();
+    initMixingControl();
     initIntegrity();
 
     // FP Modules