replying to ncben108 , john wrote:
ncben108 wrote:

Mitch, did you ever find the resolution? Found your post while doing some

research. I have the same problem. I have to use a shop vac and clean
out
my dryer vent each week. 2.5 gallons....a week. Dryer has been SLOW to
dr
y (3 hours a load) and now it's not heating at all. The other problem is
t
hat the vent actually runs from the dryer to the wall, underneath my home
a
nd then back up from the grass outside, and it's at least 15 feet from
the
laundry room to the exhaust outside. I'm terrified that we are going to
ha
ve to move the vent.



ncben108 - I am having the same problem. The laundry room was real humid;
so I checked the exhaust hose thinking it had been torn. The exhaust line
was fine, so I took it off thinking it was clogged with lint, there was
some but not as much as I was expecting; additionally, it was damp and
wet. I vacuumed out the dryer exhaust and the lint catcher in the front of
the dryer. I then washed out the exhaust line to thoroughly clean it. I
then got a shop vac and sucked out the vent in line in the laundry room
expecting more lint. Much to me surprise I sucked up about a gallon of
water. I then went outside to the vent and sucked the line from that
point. I ended up sucking out another 15 gallons of water!

Once I got all of the water out of the exhaust vent I then went back to
the laundry room and starting blowing the vent with the shop vac.
Everything seemed to be clear at that point. I have now reconnected
everything and it seems to be running fine.

I have been reading different forums during this process and I suspect my
dryer line is too long; it is at least 15 feet from the dryer to the
exhaust vent outside of the house. Also, there are at least four 90 degree
turns from the dryer to the outside vent. With that said, I read that if
you have 90 degree turns and 15 feet or more of dryer exhaust line, then
one will need to get a booster fan.

Good Luck.

Here is the reference I used :
http://fantech.net/Support/FAQs/Dryer-Exhaust/

When is a dryer exhaust necessary?

According to some dryer installation instructions and local building
codes, booster fans should be added in the dryer duct run when the length
of duct exceeds 25 feet with no bends, 20 feet with one bend or 15 feet
with 2 bends. With an existing system you may find that drying times are
far longer than the dryer manufacturers instructions give, this may
indicate that you have an duct run longer and more restrictive than your
dryer can handle. Installing a Fantech dryer booster in the duct line will
relieve the excess pressure in the duct allowing the dryer to operate as
designed.




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