925.05 MINIMUM SEWER GRADES.
    The minimum sewer grades shall be:
(a)    6-inch laterals
1.00%
(b)    8-inch pipe
0.40%
(c)    10-inch pipe    
0.30%
(d)    12-inch pipe
0.22%
(e)    Over 12-inch pipe
Accepted engineering design practice.
 
            
(Ord. 86-1968. Passed 12-3-68.)