Index: leahi_dialin/dd/dialysate_delivery.py
===================================================================
diff -u -ra407ca3aee42efe94cf8d2fe41ef2804175b992b -ra2aad87f17d5f85922b458ca2b73d20fb4f49c3a
--- leahi_dialin/dd/dialysate_delivery.py	(.../dialysate_delivery.py)	(revision a407ca3aee42efe94cf8d2fe41ef2804175b992b)
+++ leahi_dialin/dd/dialysate_delivery.py	(.../dialysate_delivery.py)	(revision a2aad87f17d5f85922b458ca2b73d20fb4f49c3a)
@@ -26,7 +26,6 @@
 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
@@ -127,7 +126,6 @@
         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)