Index: leahi_dialin/dd/modules/drybicart.py
===================================================================
diff -u -r4fc29aead7deff5ba3ddb4c9e1290fc0d5b2b6e8 -r0dae30ee2608053ac19508c8a71ead2d2f4518e1
--- leahi_dialin/dd/modules/drybicart.py	(.../drybicart.py)	(revision 4fc29aead7deff5ba3ddb4c9e1290fc0d5b2b6e8)
+++ leahi_dialin/dd/modules/drybicart.py	(.../drybicart.py)	(revision 0dae30ee2608053ac19508c8a71ead2d2f4518e1)
@@ -54,12 +54,14 @@
         self.dd_dry_bicart_timestamp = 0.0                      #: The timestamp of the last message
         self.dd_dry_bicart_fill_execution_state = 0             #: The Dry Bicart fill execution state
         self.dd_bicarb_chamber_fill_execution_state = 0         #: The Bicarb chamber fill execution state
-        self.dd_dry_bicart_drain_execution_state = 0        #: The Dry Bicart drain execution state
+        self.dd_dry_bicart_drain_execution_state = 0            #: The Dry Bicart drain execution state
+        self.dd_dry_bicart_depressurize_execution_state = 0     #: The Dry Bicart depressurize execution state
         self.dd_dry_bicart_fill_cycle_counter = 0               #: The Dry Bicart fill cycle counter
         self.dd_dry_bicart_max_fill_cycle_count = 0             #: The Dry Bicart max fill cycle state
         self.dd_dry_bicart_fill_request = 0                     #: Is fill requested for Dry Bicart or not
         self.dd_bicarb_chamber_fill_request = 0                 #: Is fill requested for Bicarb Chamber or not
         self.dd_dry_bicart_drain_request = 0                    #: Is drain requested for Dry Bicart or not
+        self.dd_dry_bicart_depressurize_request = 0             #: Is depressurize requested for Dry Bicart or not
         self.dd_dry_bicart_last_fill_time = 0                   #: The Dry Bicart last fill time
         self.dd_dry_bicart_current_fill_time = 0                #: The Dry Bicart current fill time
         self.dd_dryBiCartType = 0                               #: The Dry Bicart concentrate option index
@@ -241,7 +243,7 @@
             logger=self.logger,
             can_interface=self.can_interface)
 
-    def cmd_dry_bicart_depressurise_override(self, depressurise: int, reset: int = NO_RESET) -> int:
+    def cmd_dry_bicart_depressurize_override(self, depressurise: int, reset: int = NO_RESET) -> int:
         """
         Constructs and sends the dry bicart depressurise override command
         Constraints:
@@ -263,3 +265,49 @@
             override_text=str(depressurise),
             logger=self.logger,
             can_interface=self.can_interface)
+
+    def cmd_dry_bicart_lower_cart_pressure_override(self, lower_cart_pressure: int, reset: int = NO_RESET) -> int:
+        """
+        Constructs and sends the dry bicart lower cart pressure override command
+        Constraints:
+            Must be logged into DD.
+
+        @param lower_cart_pressure:  int - value for lower cart pressure (
+        @return: 1 if successful, zero otherwise
+        """
+        lower_cart_pressure = integer_to_bytearray(lower_cart_pressure)
+        reset_byte_array = integer_to_bytearray(reset)
+        payload = reset_byte_array + lower_cart_pressure
+
+        return cmd_generic_override(
+            payload=payload,
+            reset=reset,
+            channel_id=CanChannels.dialin_to_dd_ch_id,
+            msg_id=MsgIds.MSG_ID_DD_BICART_LOWER_PRESSURE_OVERRIDE_REQUEST,
+            entity_name='Bicart Lower Cart Pressure',
+            override_text=str(lower_cart_pressure),
+            logger=self.logger,
+            can_interface=self.can_interface)
+
+    def cmd_dry_bicart_upper_cart_pressure_override(self, upper_cart_pressure: int, reset: int = NO_RESET) -> int:
+        """
+        Constructs and sends the dry bicart upper cart pressure override command
+        Constraints:
+            Must be logged into DD.
+
+        @param upper_cart_pressure:  int - value for upper cart pressure (
+        @return: 1 if successful, zero otherwise
+        """
+        upper_cart_pressure = integer_to_bytearray(upper_cart_pressure)
+        reset_byte_array = integer_to_bytearray(reset)
+        payload = reset_byte_array + upper_cart_pressure
+
+        return cmd_generic_override(
+            payload=payload,
+            reset=reset,
+            channel_id=CanChannels.dialin_to_dd_ch_id,
+            msg_id=MsgIds.MSG_ID_DD_BICART_UPPER_PRESSURE_OVERRIDE_REQUEST,
+            entity_name='Bicart Upper Cart Pressure',
+            override_text=str(upper_cart_pressure),
+            logger=self.logger,
+            can_interface=self.can_interface)