Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -rd608769332d4ffe19f39a18caca14d6155f13e0a -rdfbf41dad1b99681d364130f2c3d27a0e7c99566
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision d608769332d4ffe19f39a18caca14d6155f13e0a)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision dfbf41dad1b99681d364130f2c3d27a0e7c99566)
@@ -50,7 +50,7 @@
 
 #define PRE_TREATMENT_MIN_FILL_RESERVOIR_VOLUME_ML    500               ///< Fill reservoir to this volume minimum to prep volume during development.
 #define PRE_TREATMENT_FLUSH_RESERVOIR_VOLUME_ML       300               ///< Fill reservoir to this volume (in mL) to flush filter and lines.
-#define PRE_TREATMENT_FILL_RESERVOIR_ONE_VOLUME_ML    1300              ///< Fill reservoir one to this volume (in mL) during pre-treatment mode.
+#define PRE_TREATMENT_FILL_RESERVOIR_ONE_VOLUME_ML    1500              ///< Fill reservoir one to this volume (in mL) during pre-treatment mode.
 #define PRE_TREATMENT_FILL_RESERVOIR_TWO_VOLUME_ML    600               ///< Fill reservoir two to this volume (in mL) during pre-treatment mode.
 #define PRE_TREATMENT_FULL_RESERVOIR_VOLUME_ML        1500              ///< Fill reservoir to this volume minimum to prep volume during development.
 
Index: firmware/App/Services/Reservoirs.h
===================================================================
diff -u -r487d3524cbf3b50dad1308fc1f68b733cc00c4cd -rdfbf41dad1b99681d364130f2c3d27a0e7c99566
--- firmware/App/Services/Reservoirs.h	(.../Reservoirs.h)	(revision 487d3524cbf3b50dad1308fc1f68b733cc00c4cd)
+++ firmware/App/Services/Reservoirs.h	(.../Reservoirs.h)	(revision dfbf41dad1b99681d364130f2c3d27a0e7c99566)
@@ -33,7 +33,7 @@
 // ********** public definitions **********
 
 #define DRAIN_RESERVOIR_TO_VOLUME_ML            0       ///< Drain reservoir to this volume (in mL) during treatment.
-#define FILL_RESERVOIR_TO_VOLUME_ML             1500    ///< Fill reservoir to this volume (in mL) during treatment.
+#define FILL_RESERVOIR_TO_VOLUME_ML             1700    ///< Fill reservoir to this volume (in mL) during treatment.
 
 /// Reservoir management publish data structure
 typedef struct