Index: firmware/App/HDCommon.h
===================================================================
diff -u -r5909cc2718d1390b15b2822d7e9e6374a4bb965d -r65c25f76d203522763fcbaa6bf205f3c5dd7d3de
--- firmware/App/HDCommon.h	(.../HDCommon.h)	(revision 5909cc2718d1390b15b2822d7e9e6374a4bb965d)
+++ firmware/App/HDCommon.h	(.../HDCommon.h)	(revision 65c25f76d203522763fcbaa6bf205f3c5dd7d3de)
@@ -50,7 +50,7 @@
 //    #define RUN_BP_OPEN_LOOP                1           // Run blood pump in open loop mode
 //    #define RUN_DPI_OPEN_LOOP               1           // Run dialysate inlet pump in open loop mode
     #define WORN_OUT_CARTRIDGE              1           // Running with an old worn out cartridge (max wear)
-    #define PBA_ESTIMATION                  1           // Estimate arterial pressure rather than look at PBA sensor
+//    #define PBA_ESTIMATION                  1           // Estimate arterial pressure rather than look at PBA sensor
     #define DISABLE_MOTOR_CURRENT_CHECKS    1           // Do not error on HD pump current checks
     #define DISABLE_PUMP_FLOW_CHECKS        1           // Do not error on HD pump flow checks
     #define DISABLE_PUMP_SPEED_CHECKS       1           // Do not error on HD pump speed checks