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Old 04-02-2009, 11:28 AM   #1
henw's Avatar
2007 28' International CCD
Windermere , Florida
Join Date: Feb 2007
Posts: 457
Black Tank Vent

I'm thinking of trying a black tank vent that positions with the wind. Supposedly pulls the sewer fumes off with the direction of the breeze. What do you think?

2007 28' Int CCD.
2011 F 250 Big Honking Diesel
DTV 5lnb on a tripod.
Wilson wired repeater with YAG.
Two big screens
15dB Backfire WiFi antenna and WaveMagnum
Hawkshead Tire Monitors.
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Old 04-02-2009, 01:52 PM   #2
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2006 25' Safari FB SE
St. Cloud , Minnesota
Join Date: Aug 2003
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Downwind is the only direction tank odors are going to go anyway. A 90 degree angle at the same diameter puts up enough resistance that it lessens the effective cross section of the vent. Rain isn't a factor -- the amount of water entering your tank is miniscule. I see them at Camping World and a few other places. Control of odors when underway might be a consideration -- but wouldn't be necessary if the toilet seal retains water and your sink & shower traps hold water. This sounds like a wallet extraction to me.

We'll get gray tank odors because we don't use the shower a lot and sometimes the trap dries out. Diagnosis in an instant and is easy to fix -- a directional vent wouldn't help or hurt that.

5 meter Langford Nahanni

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Old 04-02-2009, 05:37 PM   #3
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You can't ignore the "cool" factor. Doesn't having a plastic weather vane on your roof count for something?

You could even add wings and paint it to look like a pterodactyl!
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