Index: leahi_dialin/td/modules/air_pump.py
===================================================================
diff -u -r889e26ae0fcb2888938463588b01ca159d2f4565 -r11caf0a763fddde6ce2fecee1bee80699d8f6c44
--- leahi_dialin/td/modules/air_pump.py	(.../air_pump.py)	(revision 889e26ae0fcb2888938463588b01ca159d2f4565)
+++ leahi_dialin/td/modules/air_pump.py	(.../air_pump.py)	(revision 11caf0a763fddde6ce2fecee1bee80699d8f6c44)
@@ -104,13 +104,15 @@
             Must be logged into TD.
         @param state:  integer - 1 to stop the pump, 2 to activate it
         @param dutyCycle:  float - 0-100 value to set the air pump duty cycle
-        @return: 1 if successful, zero otlherwise
+        @return: 1 if successful, zero otherwise
         """
 
+        MAX_AIR_PUMP_POWER_LEVEL = int(255)
+
         if dutyCycle < 0 or dutyCycle > 100:
             return 0
 
-        power = int((dutyCycle/100) * 255)
+        power = int((dutyCycle/100) * MAX_AIR_PUMP_POWER_LEVEL)
         sts = integer_to_bytearray(state)
         pwr = integer_to_bytearray(power)
         payload = sts + pwr