Index: firmware/App/Controllers/Valves.c
===================================================================
diff -u -r2cc657d123c9e6db79ed62b02f088c72ccf9ff98 -rae36722cb762a069233685bb62a63107fd80338e
--- firmware/App/Controllers/Valves.c	(.../Valves.c)	(revision 2cc657d123c9e6db79ed62b02f088c72ccf9ff98)
+++ firmware/App/Controllers/Valves.c	(.../Valves.c)	(revision ae36722cb762a069233685bb62a63107fd80338e)
@@ -41,15 +41,16 @@
 #define DATA_PUBLISH_COUNTER_START_COUNT                50                                             ///< Data publish counter start count.
 
 /// Bits associated with RO valves when interfacing with FPGA to command a valve position.  1=energized, 0=de-energized.
-static const U08 ValveBits[ NUM_OF_VALVES ] = {
-    0x01,
-    0x02,
-    0x04,
-    0x08,
-    0x10,
-    0x20,
-    0x40,
-    0x80
+static const U16 ValveBits[ NUM_OF_VALVES ] = {
+    0x0001,
+    0x0002,
+    0x0004,
+    0x0008,
+    0x0010,
+    0x0020,
+    0x0040,
+    0x0080,
+    0x0100
 };
 
 // ********** private data **********
Index: firmware/App/Controllers/Valves.h
===================================================================
diff -u -r2cc657d123c9e6db79ed62b02f088c72ccf9ff98 -rae36722cb762a069233685bb62a63107fd80338e
--- firmware/App/Controllers/Valves.h	(.../Valves.h)	(revision 2cc657d123c9e6db79ed62b02f088c72ccf9ff98)
+++ firmware/App/Controllers/Valves.h	(.../Valves.h)	(revision ae36722cb762a069233685bb62a63107fd80338e)
@@ -31,15 +31,16 @@
 /// Enumeration of valves.
 typedef enum Valves
 {
-    VWI = 0,                                      ///< Valve (M4)
+    VWI = 0,                                      ///< Valve (M4 VWi)
     FIRST_VALVE = VWI,                            ///< First valve
-    VROD,                                         ///< Valve (P39)
-    VFF,                                          ///< Valve (P6)
-    VPI,                                          ///< Valve (P11)
-    VCR,                                          ///< Valve (P33)
-    VCB,                                          ///< Valve (P34)
-    VCD,                                          ///< Valve (P37)
-    VFB,                                          ///< Valve (M7)
+    VROD,                                         ///< Valve (P39 VROd)
+    VFF,                                          ///< Valve (P6 VFF)
+    VPI,                                          ///< Valve (P11 VPi)
+    VCR,                                          ///< Valve (P33 VCr)
+    VCB,                                          ///< Valve (P34 VCb)
+    VCD,                                          ///< Valve (P37 VCd)
+    VFB,                                          ///< Valve (M7 VFB)
+    SPP,                                          ///< Valve (P20 SPP)
     NUM_OF_VALVES                                 ///< Number of valves
 } VALVES_T;
 
Index: firmware/App/Services/FpgaRO.c
===================================================================
diff -u -re491c38c7c2e7850b5a7ff906c04d81eabf0efb8 -rae36722cb762a069233685bb62a63107fd80338e
--- firmware/App/Services/FpgaRO.c	(.../FpgaRO.c)	(revision e491c38c7c2e7850b5a7ff906c04d81eabf0efb8)
+++ firmware/App/Services/FpgaRO.c	(.../FpgaRO.c)	(revision ae36722cb762a069233685bb62a63107fd80338e)
@@ -126,17 +126,17 @@
     U16 roPumpTachCount;                        ///< Reg 360.  ROP tachometer counter.
     U16 dsPumpTachCount;                        ///< Reg 362.  DSP tachometer counter.
     U16 flowIntTempFmp;                         ///< Reg 364.  FMP flow sensor internal temperature.
-    U08 valveControlReadback;                   ///< Reg 366.  Valve control bits read back.
-    U08 valvePWMEnableReadback;                 ///< Reg 367.  Valve PWM enable read back.
+    U16 valveControlReadback;                   ///< Reg 366.  Valve control bits read back.
+//    U08 valvePWMEnableReadback;                 ///< Reg 367.  Valve PWM enable read back.
     U16 roPumpPWMReadback;                      ///< Reg 368.  ROP PWM read back.
     U16 heaterPWMReadback;                      ///< Reg 370.  Heater PWM read back.
 } FPGA_SENSORS_T;
 
 /// Record structure for FPGA continuous priority writes.
 typedef struct
 {
-    U08 valveControl;                           ///< Reg 04.  Valve control register.
-    U08 valvePWMEnable;                         ///< Reg 05.  Valve PWM enable register.
+    U16 valveControl;                           ///< Reg 04.  Valve control register.
+//    U08 valvePWMEnable;                         ///< Reg 05.  Valve PWM enable register.
     U08 conductivityCPiControl;                 ///< Reg 06.  CPi conductivity control register.
     U08 conductivityCPoControl;                 ///< Reg 07.  CPo conductivity control register.
     U16 conductivityCPiAddress;                 ///< Reg 08.  CPi conductivity address register.
@@ -375,7 +375,7 @@
  * @details \b Outputs: fpgaSensorReadings.valveControlReadback
  * @return none
  *************************************************************************/
-U08 getFPGAValveStates( void )
+U16 getFPGAValveStates( void )
 {
     return fpgaSensorReadings.valveControlReadback;
 }
Index: firmware/App/Services/FpgaRO.h
===================================================================
diff -u -re491c38c7c2e7850b5a7ff906c04d81eabf0efb8 -rae36722cb762a069233685bb62a63107fd80338e
--- firmware/App/Services/FpgaRO.h	(.../FpgaRO.h)	(revision e491c38c7c2e7850b5a7ff906c04d81eabf0efb8)
+++ firmware/App/Services/FpgaRO.h	(.../FpgaRO.h)	(revision ae36722cb762a069233685bb62a63107fd80338e)
@@ -42,7 +42,7 @@
 BOOL checkFPGAFEOEFailure( void );
 
 void setFPGAValveStates( U16 valveStates );
-U08  getFPGAValveStates( void );
+U16  getFPGAValveStates( void );
 
 void setROPumpEnable( BOOL enable );
 void setROPumpPWMPct( U16 pwm );