Index: firmware/App/Monitors/Pressure.h
===================================================================
diff -u -r69e32c52c41cfc8073a7eb59408fb30e6ac40f86 -r85a88a4ffdc56784d261ccd2e87d156805666c5d
--- firmware/App/Monitors/Pressure.h	(.../Pressure.h)	(revision 69e32c52c41cfc8073a7eb59408fb30e6ac40f86)
+++ firmware/App/Monitors/Pressure.h	(.../Pressure.h)	(revision 85a88a4ffdc56784d261ccd2e87d156805666c5d)
@@ -44,6 +44,7 @@
     F32 x2Pressure;                                             ///< Pressure RO Concentrate
     F32 x3Pressure;                                             ///< Pressure RO Concentrate drop
     F32 x4Pressure;                                             ///< Pressure drain drop
+    F32 x5Pressure;                                             ///< Spare pressure sensor slot
     F32 m1Temp;                                                 ///< Temperature before pressure regulator (M1)
     F32 m3Temp;                                                 ///< Temperature after pressure regulator (M3)
     F32 p8Temp;                                                 ///< Temperature before inlet conductivity sensor (P8)
@@ -53,6 +54,7 @@
     F32 x2Temp;                                                 ///< Temperature RO Concentrate
     F32 x3Temp;                                                 ///< Temperature RO Concentrate drop
     F32 x4Temp;                                                 ///< Temperature drain drop
+    F32 x5Temp;                                                 ///< Spare pressure sensor slot
 } PRESSURE_TEMP_DATA_T;
 
 // ********** public function prototypes **********