What authority allows/disallows connecting a passive radon stack to the sewer stack. Advice on the internet is don’t do it but I need a little ammo for a new home construction, possible builder objection.
Second page… right margin…
Check the vent stack pressure.
If you are going to claim that the sewer gas could backup into the house (through the vent connection) to the sanitary drain then you should show how it will occur.
HVAC problems could cause a pressurized house to about 75pa.
If the vent stack is less greater than -75pa then you could dump radon into the house through the plumbing system.
Not permitted anywhere.
Can you imagine having to later activate that passive system? Talk about $#!t hitting the fan!
Yep! Nick is correct.
Be it active or passive they get there own stack.
The question is; What authority allows/disallows connecting a passive radon stack to the sewer stack.
Otherwise prove it wrong.
Asked and answered. OP is located in Illinois. In Illinois, Radon is overseen by IEMA.
No authority allows it. Not one anywhere in the world.