Index: firmware/App/Controllers/ConductivitySensors.c
===================================================================
diff -u -rc774db57bc06b2dac2bf9aa268b8eab2294046d9 -r569fc4bd2ae5f45677aaf34816d7e01834c68708
--- firmware/App/Controllers/ConductivitySensors.c	(.../ConductivitySensors.c)	(revision c774db57bc06b2dac2bf9aa268b8eab2294046d9)
+++ firmware/App/Controllers/ConductivitySensors.c	(.../ConductivitySensors.c)	(revision 569fc4bd2ae5f45677aaf34816d7e01834c68708)
@@ -238,8 +238,10 @@
     BOOL const isPostAcidConductivityOutOfRange = ( postAcidConductivity <= CONCENTRATE_POST_ACID_MIN_CONDUCTIVITY ) || ( postAcidConductivity >= CONCENTRATE_POST_ACID_MAX_CONDUCTIVITY );
     BOOL const isPostBicarbConductivityOutOfRange = ( postBicarbonateConductivity <= CONCENTRATE_POST_BICARB_MIN_CONDUCTIVITY ) || ( postBicarbonateConductivity >= CONCENTRATE_POST_BICARB_MAX_CONDUCTIVITY );
 
+#ifndef DISABLE_DIALYSATE_CHECK
     checkPersistentAlarm( PERSISTENT_ALARM_POST_ACID_CONDUCTIVITY_OUT_OF_RANGE, isPostAcidConductivityOutOfRange, postAcidConductivity, CONCENTRATE_POST_ACID_MIN_CONDUCTIVITY );
     checkPersistentAlarm( PERSISTENT_ALARM_POST_BICARB_CONDUCTIVITY_OUT_OF_RANGE, isPostBicarbConductivityOutOfRange, postBicarbonateConductivity, CONCENTRATE_POST_BICARB_MIN_CONDUCTIVITY );
+#endif
 }
 
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