diff --git a/api/s23_options.py b/api/s23_options.py
index 5f4dd99..50d0b97 100644
--- a/api/s23_options.py
+++ b/api/s23_options.py
@@ -1,34 +1,36 @@
 from .database import *
 
-OPTION_UNITS_CFS = 'CFS'
-OPTION_UNITS_GPM = 'GPM'
-OPTION_UNITS_MGD = 'MGD'
+
+OPTION_UNITS_CFS  = 'CFS'
+OPTION_UNITS_GPM  = 'GPM'
+OPTION_UNITS_MGD  = 'MGD'
 OPTION_UNITS_IMGD = 'IMGD'
-OPTION_UNITS_AFD = 'AFD'
-OPTION_UNITS_LPS = 'LPS'
-OPTION_UNITS_LPM = 'LPM'
-OPTION_UNITS_MLD = 'MLD'
-OPTION_UNITS_CMH = 'CMH'
-OPTION_UNITS_CMD = 'CMD'
+OPTION_UNITS_AFD  = 'AFD'
+OPTION_UNITS_LPS  = 'LPS'
+OPTION_UNITS_LPM  = 'LPM'
+OPTION_UNITS_MLD  = 'MLD'
+OPTION_UNITS_CMH  = 'CMH'
+OPTION_UNITS_CMD  = 'CMD'
 
 OPTION_PRESSURE_PSI = 'PSI'
 OPTION_PRESSURE_KPA = 'KPA'
-OPTION_PRESSURE_M = 'M'
+OPTION_PRESSURE_M   = 'M'
 
 OPTION_HEADLOSS_HW = 'H-W'
 OPTION_HEADLOSS_DW = 'D-W'
 OPTION_HEADLOSS_CM = 'C-M'
 
-OPTION_UNBALANCED_STOP = 'STOP'
+OPTION_UNBALANCED_STOP     = 'STOP'
 OPTION_UNBALANCED_CONTINUE = 'CONTINUE'
 
 OPTION_DEMAND_MODEL_DDA = 'DDA'
 OPTION_DEMAND_MODEL_PDA = 'PDA'
 
-OPTION_QUALITY_NONE = 'NONE'
+OPTION_QUALITY_NONE     = 'NONE'
 OPTION_QUALITY_CHEMICAL = 'CHEMICAL'
-OPTION_QUALITY_AGE = 'AGE'
-OPTION_QUALITY_TRACE = 'TRACE'
+OPTION_QUALITY_AGE      = 'AGE'
+OPTION_QUALITY_TRACE    = 'TRACE'
+
 
 element_schema = {'type': 'str' , 'optional': True , 'readonly': False}