Index: firmware/App/DDCommon.h
===================================================================
diff -u -re6415d33321e7990c3b5e82b0c8a87c64cc3a2c8 -re803f3e6d135641015dc78e2aeac0a5489c9492c
--- firmware/App/DDCommon.h	(.../DDCommon.h)	(revision e6415d33321e7990c3b5e82b0c8a87c64cc3a2c8)
+++ firmware/App/DDCommon.h	(.../DDCommon.h)	(revision e803f3e6d135641015dc78e2aeac0a5489c9492c)
@@ -55,7 +55,7 @@
 //#define ENABLE_ALARM_2
 
 //Uncomment below for spent chamber filling
-#define __SPENT_CHAMBER_FILL__    1
+//#define __SPENT_CHAMBER_FILL__    1
 
 //Uncomment below for bicarb chamber filling
 //#define __BICARB_CHAMBER_FILL__   1