Index: firmware/App/Controllers/LoadCell.c
===================================================================
diff -u -rdfb6b6f44bbcfd44e7d55914ee82617c2f50d745 -r9c523a8628bb75b601c048f67d3ef7250f45f547
--- firmware/App/Controllers/LoadCell.c	(.../LoadCell.c)	(revision dfb6b6f44bbcfd44e7d55914ee82617c2f50d745)
+++ firmware/App/Controllers/LoadCell.c	(.../LoadCell.c)	(revision 9c523a8628bb75b601c048f67d3ef7250f45f547)
@@ -37,7 +37,6 @@
 #define LOAD_CELL_REPORT_PERIOD                             (100 / TASK_PRIORITY_INTERVAL)        ///< Broadcast load cell values message every 100 ms.
 /// Conversion factor from ADC counts to grams.
 static const F32 ADC2GRAM =                                 (0.0894 * 1.1338);
-#define LOAD_CELL_FILTER_ALPHA                              0.05                                  ///< Alpha factor for the alpha filter used on load cell readings.
 
 #define SIZE_OF_SMALL_LOAD_CELL_AVG                         100                                   ///< Small load cell moving average has 100 raw samples @ 10ms intervals (1-second).
 #define SIZE_OF_LARGE_LOAD_CELL_AVG                         40                                    ///< Large load cell moving average has 40 samples from small filter @ 100ms intervals (4-second).
Index: firmware/App/Services/Reservoirs.c
===================================================================
diff -u -rdfb6b6f44bbcfd44e7d55914ee82617c2f50d745 -r9c523a8628bb75b601c048f67d3ef7250f45f547
--- firmware/App/Services/Reservoirs.c	(.../Reservoirs.c)	(revision dfb6b6f44bbcfd44e7d55914ee82617c2f50d745)
+++ firmware/App/Services/Reservoirs.c	(.../Reservoirs.c)	(revision 9c523a8628bb75b601c048f67d3ef7250f45f547)
@@ -43,7 +43,7 @@
 
 #define MAX_RESERVOIR_WEIGHT            10000                                           ///< Maximum reservoir weight in grams.
 
-#define MIN_DRAIN_INLET_PSI_EMPTY       3.0                                             ///< Minimum drain inlet pressure (in PSI) to indicate reservoir is empty while drain pump on.
+#define MIN_DRAIN_INLET_PSI_EMPTY       -3.0                                            ///< Minimum drain inlet pressure (in PSI) to indicate reservoir is empty while drain pump on.
 
 #define RESERVOIR_DATA_PUB_INTERVAL     ( MS_PER_SECOND / TASK_GENERAL_INTERVAL )       ///< interval (ms/task time) at which the reservoir data is published on the CAN bus.