Index: leahi_dialin/dd/dialysate_delivery.py
===================================================================
diff -u -r9c785697827d1a21021b48b57d5a14f157856ec2 -r8e3ce4e082f70e12b48d796c518994662f7668b3
--- leahi_dialin/dd/dialysate_delivery.py	(.../dialysate_delivery.py)	(revision 9c785697827d1a21021b48b57d5a14f157856ec2)
+++ leahi_dialin/dd/dialysate_delivery.py	(.../dialysate_delivery.py)	(revision 8e3ce4e082f70e12b48d796c518994662f7668b3)
@@ -25,7 +25,6 @@
 from .modules.gen_dialysate import DDGenDialysate
 from .modules.heaters import DDHeaters
 from .modules.levels import DDLevels
-from .modules.piston_pump import DDPistonPumps
 from .modules.post_gen_dialysate import DDPostGenDialysate
 from .modules.pressure_sensors import DDPressureSensors
 from .modules.pre_gen_dialysate import DDPreGenDialysate
@@ -125,7 +124,6 @@
         self.gen_dialysate = DDGenDialysate(self.can_interface, self.logger)
         self.heaters = DDHeaters(self.can_interface, self.logger)
         self.levels = DDLevels(self.can_interface, self.logger)
-        self.piston_pumps = DDPistonPumps(self.can_interface, self.logger)
         self.post_gen_dialysate = DDPostGenDialysate(self.can_interface, self.logger)
         self.pressure_sensors = DDPressureSensors(self.can_interface, self.logger)
         self.pre_gen_dialysate = DDPreGenDialysate(self.can_interface, self.logger)