925.17 PLUMBING VENT SYSTEMS.
   (a)   Minimum Sizing of Plumbing Vent Systems. The sewer district requires a minimum three-inch main vent through the roof when constructing the plumbing in a dwelling’s venting system.
   (b)   Use of Air Admittance Valves Prohibited. The sewer district prohibits the use of air admittance valves in plumbing systems connected to the public sewer system.
(Ord. 4-10. Passed 6-1-10.)