Studer valve or AAV

[Sam Morris]

Inspected this 1993 yr old house last week. The laundry room had a vent stack going up into attic, but had a studer valve on top of the pipe that didn't tie into the main stack or terminate to the roof.. I THIS ALLOWED???

[Gunnar Alquist]

Inspected this 1993 yr old house last week. The laundry room had a vent stack going up into attic, but had a studer valve on top of the pipe that didn't tie into the main stack or terminate to the roof.. I THIS ALLOWED???

If I remember correctly, at least one vent needs to go through the roof and your post indicates that it does. I see no problem with this "Studor"valve installation.

[Scott Patterson]

Inspected this 1993 yr old house last week. The laundry room had a vent stack going up into attic, but had a studer valve on top of the pipe that didn't tie into the main stack or terminate to the roof.. I THIS ALLOWED???
Well a Studer vent is an AAV.... Studer is a brand like Kleenx.

I do not see a problem..

[Jerry Peck]

1993 yr old house

Dang! That is one old house there - built in 19 AD ... :)

To expand on what Gunnar said and what I did not read you saying - *is* there at least one vent which goes to outdoor air?

As Gunnar said, at least one vent is required to go to outdoor air.

[Ken Rowe]

So people don't get confused, the OP is in Tennessee. AAV are not allowed in Minnesota.

[Scott Patterson]

So people don't get confused, the OP is in Tennessee. AAV are not allowed in Minnesota.

Minnesota State News - Business alleges ‘skullduggery’ in Minnesota politics, Part II (http://www.mnstatenews.com/capitol-headlines/1-capitol/135-business-alleges-skullduggery-in-minnesota-politics-part-ii.html)

[Ken Rowe]

Minnesota State News - Business alleges ‘skullduggery’ in Minnesota politics, Part II (http://www.mnstatenews.com/capitol-headlines/1-capitol/135-business-alleges-skullduggery-in-minnesota-politics-part-ii.html)

Aren't governments wonderful. Funny thing is, I can go down to the local box store and buy them.