Index: leahi_dialin/fp/modules/permeate_tank.py
===================================================================
diff -u -rf03c9a32180573f2430105ad69eb91d9f597a96b -r34b64ff2d8a64f4b7b60b80bb7cf4c36845e5943
--- leahi_dialin/fp/modules/permeate_tank.py	(.../permeate_tank.py)	(revision f03c9a32180573f2430105ad69eb91d9f597a96b)
+++ leahi_dialin/fp/modules/permeate_tank.py	(.../permeate_tank.py)	(revision 34b64ff2d8a64f4b7b60b80bb7cf4c36845e5943)
@@ -8,17 +8,19 @@
 # @file    permeate_tank.py
 #
 # @author  (last)      Zoltan Miskolci
-# @date    (last)      09-Jan-2026
+# @date    (last)      05-May-2026
 # @author  (original)  Micahel Garthwaite
 # @date    (original)  29-Oct-2020
 #
 ############################################################################
 
-import struct
+# Module imports
 from logging import Logger
 
+# Project imports
 from leahi_dialin.common.constants import NO_RESET
-from leahi_dialin.common.msg_defs import MsgIds, MsgFieldPositions
+from leahi_dialin.common.generic_defs import DataTypes
+from leahi_dialin.common.msg_defs import MsgIds
 from leahi_dialin.common.override_templates import cmd_generic_broadcast_interval_override
 from leahi_dialin.protocols.CAN import DenaliCanMessenger, DenaliChannels
 from leahi_dialin.utils.abstract_classes import AbstractSubSystem
@@ -42,10 +44,9 @@
         self.logger = logger
 
         if self.can_interface is not None:
-            channel_id = DenaliChannels.dd_sync_broadcast_ch_id
-            self.msg_id_fp_permeate_tank_data = MsgIds.MSG_ID_FP_PERMEATE_TANK_DATA.value
-            self.can_interface.register_receiving_publication_function(channel_id, self.msg_id_fp_permeate_tank_data,
-                                                                       self._handler_permeate_tank_sync)
+            self.can_interface.register_receiving_publication_function(channel_id = DenaliChannels.fp_sync_broadcast_ch_id,     # DenaliChannels.dd_sync_broadcast_ch_id ??
+                                                                       message_id = MsgIds.MsgIds.value,
+                                                                       function = self._handler_permeate_tank_sync)
 
         self.permeate_tank_timestamp = 0.0                      #: The timestamp of the last message
         self.permeate_tank_state = 0                            #: The Permeate Tank's State value
@@ -59,9 +60,11 @@
         @param message: published permeate tank data message
         @return: None
         """
-        self.permeate_tank_state = struct.unpack('I', bytearray(
-            message['message'][MsgFieldPositions.START_POS_FIELD_1:MsgFieldPositions.END_POS_FIELD_1]))[0]
+        msg_list =[]
+        msg_list.append(('self.permeate_tank_state',    DataTypes.U32))
 
+        self.process_into_vars(decoder_list = msg_list,
+                               message = message)
         self.permeate_tank_timestamp = timestamp