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Two clothes dryers on a single vent

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Two clothes dryers on a single vent SMS 08-24-2007
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Posted by SMS on August 24, 2007, 3:42 am
A tenant called me regarding water in her dryer whenever the other
tenant in the duplex did laundry. She said it's been happening ever
since she moved in six months ago (this building's only been ours for
six months).

Water in the dryer? This was a new one. Well what I found is that the
laundry rooms back up to each other, and that two dryers have exhaust
hoses that connect together, then to a single vent outside through about
a six foot length of vent hose. When one tenant uses their dryer, part
of the moist air goes back into the other dryer where it condenses and
leaves a pool of water.

I thought of using two of those draft blockers, one on each section of
hose before it reaches the Y connection, but I was worried that if both
dryers are running at the same time that the back pressure will keep one
or the other from opening.

Running another vent hose out the wall is another option I guess. Is
there a hole saw for a 4" vent, or how do you cut a clean 4" hole
through stucco?

Posted by RBM on August 24, 2007, 6:48 am
Running a new vent would be the solution. Lenox makes a carbide tipped hole
saw which would cut stucco, but it costs around $100. You can use a small
masonry bit and drill a circle of holes in the stucco, then chip it out from
the center



>A tenant called me regarding water in her dryer whenever the other tenant
>in the duplex did laundry. She said it's been happening ever since she
>moved in six months ago (this building's only been ours for six months).
>
> Water in the dryer? This was a new one. Well what I found is that the
> laundry rooms back up to each other, and that two dryers have exhaust
> hoses that connect together, then to a single vent outside through about a
> six foot length of vent hose. When one tenant uses their dryer, part of
> the moist air goes back into the other dryer where it condenses and leaves
> a pool of water.
>
> I thought of using two of those draft blockers, one on each section of
> hose before it reaches the Y connection, but I was worried that if both
> dryers are running at the same time that the back pressure will keep one
> or the other from opening.
>
> Running another vent hose out the wall is another option I guess. Is there
> a hole saw for a 4" vent, or how do you cut a clean 4" hole through
> stucco?



Posted by HotRdd on August 24, 2007, 8:42 am
go to any local lumber yard and buy a regular holesaw as long as the stucco
isn't supper thick it will cut through. You need two vents here, the shorter
the better.


>A tenant called me regarding water in her dryer whenever the other tenant
>in the duplex did laundry. She said it's been happening ever since she
>moved in six months ago (this building's only been ours for six months).
>
> Water in the dryer? This was a new one. Well what I found is that the
> laundry rooms back up to each other, and that two dryers have exhaust
> hoses that connect together, then to a single vent outside through about a
> six foot length of vent hose. When one tenant uses their dryer, part of
> the moist air goes back into the other dryer where it condenses and leaves
> a pool of water.
>
> I thought of using two of those draft blockers, one on each section of
> hose before it reaches the Y connection, but I was worried that if both
> dryers are running at the same time that the back pressure will keep one
> or the other from opening.
>
> Running another vent hose out the wall is another option I guess. Is there
> a hole saw for a 4" vent, or how do you cut a clean 4" hole through
> stucco?



Posted by on August 24, 2007, 10:56 am

> A tenant called me regarding water in her dryer whenever the other
> tenant in the duplex did laundry. She said it's been happening ever
> since she moved in six months ago (this building's only been ours for
> six months).
>
> Water in the dryer? This was a new one. Well what I found is that the
> laundry rooms back up to each other, and that two dryers have exhaust
> hoses that connect together, then to a single vent outside through about
> a six foot length of vent hose. When one tenant uses their dryer, part
> of the moist air goes back into the other dryer where it condenses and
> leaves a pool of water.
>
> I thought of using two of those draft blockers, one on each section of
> hose before it reaches the Y connection, but I was worried that if both
> dryers are running at the same time that the back pressure will keep one
> or the other from opening.
>
> Running another vent hose out the wall is another option I guess. Is
> there a hole saw for a 4" vent, or how do you cut a clean 4" hole
> through stucco?


Yes, they make 4" hole saws.

Is the existing vent termination only 4"?
Are these gas or electric dryers?



Posted by Steve Barker on August 24, 2007, 11:41 am
Just a hint, get a 4-1/8" hole saw. The 4" won't make a big enough hole.

steve


>A tenant called me regarding water in her dryer whenever the other tenant
>in the duplex did laundry. She said it's been happening ever since she
>moved in six months ago (this building's only been ours for six months).
>
> Water in the dryer? This was a new one. Well what I found is that the
> laundry rooms back up to each other, and that two dryers have exhaust
> hoses that connect together, then to a single vent outside through about a
> six foot length of vent hose. When one tenant uses their dryer, part of
> the moist air goes back into the other dryer where it condenses and leaves
> a pool of water.
>
> I thought of using two of those draft blockers, one on each section of
> hose before it reaches the Y connection, but I was worried that if both
> dryers are running at the same time that the back pressure will keep one
> or the other from opening.
>
> Running another vent hose out the wall is another option I guess. Is there
> a hole saw for a 4" vent, or how do you cut a clean 4" hole through
> stucco?



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