Index: firmware/App/DDCommon.h
===================================================================
diff -u -rab0d10f8e78958ca0dba8b5e9abb5ab15eae132a -r57bbf4b3e97f2c3e966eb1305aa30395ea61897d
--- firmware/App/DDCommon.h	(.../DDCommon.h)	(revision ab0d10f8e78958ca0dba8b5e9abb5ab15eae132a)
+++ firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 57bbf4b3e97f2c3e966eb1305aa30395ea61897d)
@@ -54,9 +54,6 @@
 //Uncomment below if D1 placement is used for Temp control at dialyzer
 //#define __USE_D1_TEMP_     1
 
-// comment below to disable bicarb multi level sensor for time based chamber F fill
-#define CONDUCTIVE_LEVEL_SENSOR_ENABLED  1
-
 //Uncomment below to disable d30 heater alarm(as all units are not equipped with d30 temp sensor)
 #define __D30_TEMPERATURE_DISABLED__ 1