Index: firmware/App/DGCommon.h
===================================================================
diff -u -r1a7b3fdc8c9b47ae713a7ec37670a96df7d73818 -rbd8fa3f754c8a8fd797d1828c416f73680924b64
--- firmware/App/DGCommon.h	(.../DGCommon.h)	(revision 1a7b3fdc8c9b47ae713a7ec37670a96df7d73818)
+++ firmware/App/DGCommon.h	(.../DGCommon.h)	(revision bd8fa3f754c8a8fd797d1828c416f73680924b64)
@@ -53,7 +53,7 @@
     #define DISABLE_RO_RATIO_CHECK          1
     #define DISABLE_COND_SENSOR_CHECK       1
     #define DISABLE_MIXING                  1
-    #define DISABLE_WATER_QUALITY_CHECK     1
+//    #define DISABLE_WATER_QUALITY_CHECK     1
     #include <stdio.h>
     #include <strings.h>
 #endif