Are air admittance valves allowed in Illinois?
Posted: Fri Mar 13, 2009 9:43 pm
Question from an e-mail.
Hey Codeman, maybe you can answer this:
I am in Illinois and have been finding air admittance valves installed in some locations.
Are air admittance valves considered to be mechanical valves?
I know the Illinois plumbing code prohibits the use of mechanical valves, as do other plumbing code, but other codes allow air admittance valves and the Illinois plumbing code does not mention air admittance valves.
Can you clarify that for me?
Hey Codeman, maybe you can answer this:
I am in Illinois and have been finding air admittance valves installed in some locations.
Are air admittance valves considered to be mechanical valves?
I know the Illinois plumbing code prohibits the use of mechanical valves, as do other plumbing code, but other codes allow air admittance valves and the Illinois plumbing code does not mention air admittance valves.
Can you clarify that for me?