Index: firmware/App/Modes/ModeHeatDisinfect.c
===================================================================
diff -u -r75868c86d86060f8ec8fde969a479e186e51d9a0 -r56b1e4181f80f63d290101348dacdb3f1c39c538
--- firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 75868c86d86060f8ec8fde969a479e186e51d9a0)
+++ firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 56b1e4181f80f63d290101348dacdb3f1c39c538)
@@ -1847,8 +1847,8 @@
 
         if ( TPoTempC >= concPumpsStartTemperatureC )
         {
-            F32 acidSpeed   = getMeasuredPumpSpeed( CONCENTRATEPUMPS_CP1_ACID );
-            F32 bicarbSpeed = getMeasuredPumpSpeed( CONCENTRATEPUMPS_CP2_BICARB );
+            F32 acidSpeed   = getMeasuredPumpSpeedMLPM( CONCENTRATEPUMPS_CP1_ACID );
+            F32 bicarbSpeed = getMeasuredPumpSpeedMLPM( CONCENTRATEPUMPS_CP2_BICARB );
 
             if ( ( acidSpeed < NEARLY_ZERO ) || ( bicarbSpeed < NEARLY_ZERO ) )
             {