holding tank vent filters -- anyone tried these?

[rec]

I've been investigating holding tank vent filters -- I've found a couple online that claim to "clean" the fumes coming out off your holding tank vent using activated charcoal -- sounds reasonable to me, but I'm not sure if these are designed to work with Airstream systems, and if they really work at all. Has anyone tried these on their rig?

[Melody Ranch]

Hi...Never heard of them on an Airstream. But, that does not mean that someone will not try to sell you something like that. Actually, you should not even notice any fumes from your vents.

[DKDarrow]

Originally Posted by Melody Ranch

Hi...Never heard of them on an Airstream. But, that does not mean that someone will not try to sell you something like that. Actually, you should not even notice any fumes from your vents.

Actually, if you have a fantastic fan pretty close by and the wind is right it is easy to suck that stuff right in and it is VERY noticable........God bless.......Dennis

[Friday]

I always admire the craftsmanship of Airstream... putting both the grey and black vents 18 inches from my rear vent was pure genius. Having a fan in the front that only blows out... forcing the rear vent to suck in the smell... priceless.

[rec]

that's exactly my problem -- great ceiling fan that sits right next to the vent -- I'm tempted to try one of these filters to see how it does and report back

[dwightdi]

I would think the carbon would be quickly overcome with the fumes from the black tank and you would need to change filters very often. If they are mounted on the outside of the trailer, it would be pretty hard to make the change without a ladder.

[Melody Ranch]

Dennis is right...if you turn on that fan with it sucking fumes in...thats a problem. If its a good fan, it will reverse...blow don't suck....or just turn it off.