So I am installing a new gas dryer for my mom since it went out. Bought new gas lines and a new air vent to go along with it too, oh and gas Teflon tape. I have all machines out and decided to give a real good cleaning on floor, I noticed that where the driver vent hose connects to the wall that she has two ports. The one that is below the other (by a inch) has a cap on it, and the one on above it is were the hose connects to. Is this normal? They are connected together, because I stuck my hand down from the top to the bottom to get out a crap load of lint. Just wondering the purpose of one being below it and it being connected since clearly the bottom picks up all the lint, and to clean it requires moving the units.

Do they both penetrate to the exterior of the building? Sounds like someone didn't like the location and moved it around.

Yea if I had to describe what it would look like (now I don't know because it's behind dry wall) it's would be a elbow where the one end is where the cap is, which is then connected to a T, where the dryer hooks up to the port facing out, then it goes up and out to the back of house.

 

I think down road I'll take that room apart and end up just making it one port how it's suppose to. I don't have all supplies and everything now so it will wait. Will just have to leave space to access cap to take off and clean I suppose.

you may be able to easily bypass the hole to the bottem. Try putting a length of round duct straight thru the one going out side. They typically open up at the seam, feed it thru making sure the seam faces up away from the hole. Quick and cheap.

The bottom port is most likely a clean out, If they are connected to each other. This is a good thing.