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Posted by Joseph Meehan on October 11, 2007, 1:24 pm
> On Oct 11, 5:47 am, pheeh.z...@gmail.com wrote:
>> On Oct 10, 11:43 pm, bigjcw1...@gmail.com wrote:
>>
>> > Is it normal to have some air coming in from the fan into the
>> > bathroom. I have a screen at the end of the exhaust pipe and there is
>> > a flapper damper at the fan itself, factory installed. I cant really
>> > use a sophet vent because it restricts the air flow and causes a
>> > whistling sound when running. There was still air coming in that way
>> > too, but not as much. Had to be windier. Thanks!
>>
>> I think I can assume this condition is when not running. ; )
>> Cooler air will give you a draft (heavier air).
>
> Did you put in a s curve in the flex line or whatever you used to duct
> as this will cut backdraft a lot
Yes, but it will also decrease the desirable air flow even more.
>
--
Joseph Meehan
Dia 's Muire duit
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