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Old 02-11-2009, 08:29 AM   #15
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While I was testing trailers for leaks in Texas last weekend, none of the owners knew about the sewer vent gaskets and that they went bad. I suggested to all of them to have them replaced.

Steve
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Old 03-04-2009, 10:11 AM   #16
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This thread is perfect for what I am needing to do. I have two vents on top of my trailer, once next to the oblong looking vent for the refridgerator and one between that and the AC, they both look nearly identical and have the gaskets down inside that I want to replace.

I saw Carl ask what you used Bob to remove the existing sealer/goop with, is it the acrylclean in your picture? I need to remove this stuff first and can see the screws that need to be removed so I can get at the gaskets. My vent covers are made of a diecast metal but I am sure the process of removing and cleaning is the same?
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Old 03-04-2009, 10:22 AM   #17
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Ok, I'm sold on this, but were can I get the gasket Andy is suggesting?
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Old 03-04-2009, 10:49 AM   #18
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Originally Posted by Utahgoldrup View Post
This thread is perfect for what I am needing to do. I have two vents on top of my trailer, once next to the oblong looking vent for the refridgerator and one between that and the AC, they both look nearly identical and have the gaskets down inside that I want to replace.

I saw Carl ask what you used Bob to remove the existing sealer/goop with, is it the acrylclean in your picture? I need to remove this stuff first and can see the screws that need to be removed so I can get at the gaskets. My vent covers are made of a diecast metal but I am sure the process of removing and cleaning is the same?
Yep, The acrylclean is what I used. Used a plastic scraper to remove the old goop and cut the new gasket from a truck inner tube. Will be up there again this Spring re-sealing the sky-light and both FFans. Still got some goopy factory foot prints to clean up too.
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Old 03-04-2009, 11:32 AM   #19
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Ok, I'm sold on this, but were can I get the gasket Andy is suggesting?
We have them.

http://www.inlandrv.com/catalog/imag...entpipecvr.jpg

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Old 03-26-2009, 11:12 AM   #20
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Is it necessary to climb onto the roof to replace the sewer vent gasket or can it be done while reaching from a ladder ????? If you must climb onto the roof what precautions must be taken to avoid damage ???? Plan on doing this job soon and of course will probably find other locations that need to be re-sealed or repaired.

Thanks for any advise
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Old 03-26-2009, 12:21 PM   #21
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Is it necessary to climb onto the roof to replace the sewer vent gasket or can it be done while reaching from a ladder ????? If you must climb onto the roof what precautions must be taken to avoid damage ???? Plan on doing this job soon and of course will probably find other locations that need to be re-sealed or repaired.

Thanks for any advise
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The sewer vent pipe covers can be reached from a ladder.

Andy
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Old 03-26-2009, 05:00 PM   #22
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Thanks Bob! I have my vent seals ordered and once I have them, will use acrylclean and a plastic scraper like you mentioned to get the goop off. What is the process on putting the new seals on? Do you put any sealent down first or just put the gasket down, vent cover on top, screw it down and then put sealent around the vent pipe cover? I just want to make sure I put it all back the right way so I don't have to re-do that job.
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Old 03-26-2009, 05:20 PM   #23
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Thanks Bob! I have my vent seals ordered and once I have them, will use acrylclean and a plastic scraper like you mentioned to get the goop off. What is the process on putting the new seals on? Do you put any sealent down first or just put the gasket down, vent cover on top, screw it down and then put sealent around the vent pipe cover? I just want to make sure I put it all back the right way so I don't have to re-do that job.
We supply fiberglass screening material with our sewer vent pipe cover gaskets, at no charge.

The screen is installed over the pipe, then the gasket is slipped over the screening and the pipe. Vulkem sealer is then used to fill the void between the center hole of the gasket and the black pipe, thru the screening for a positive seal.

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Old 03-26-2009, 05:52 PM   #24
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Quote:
Originally Posted by Utahgoldrup View Post
Thanks Bob! I have my vent seals ordered and once I have them, will use acrylclean and a plastic scraper like you mentioned to get the goop off. What is the process on putting the new seals on? Do you put any sealent down first or just put the gasket down, vent cover on top, screw it down and then put sealent around the vent pipe cover? I just want to make sure I put it all back the right way so I don't have to re-do that job.
Just the way I did it, other options may vary..
After some trial and error I found it easier to just run a good bead on bottom side of gasket, stick over the opening, another bead around center opening and outside edge and vent pipe.
The opening in the shadetree gasket I made fit very tight over the tube and was easy to seal.
Also on this style vent I plugged the access tube for the cap screw that holds the cover to the roof flange.

Tighten those new stainless screws your using carefully
On this style cover the factory saw fit to only install 6 of the 10 screws.

IMHO..might as well fill the empty holes.

Used a stainless screen from an old pasta strainer over the vent opening.
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Old 03-27-2009, 09:48 PM   #25
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Originally Posted by Inland RV Center, In View Post
We supply fiberglass screening material with our sewer vent pipe cover gaskets, at no charge.

The screen is installed over the pipe, then the gasket is slipped over the screening and the pipe. Vulkem sealer is then used to fill the void between the center hole of the gasket and the black pipe, thru the screening for a positive seal.

Andy
There's one for each tank right? Black, gray and the fresh water too? (Can you tell I don't live close to my trailer?)
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Old 03-27-2009, 10:12 PM   #26
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If your 74 is like my 75 Trade Wind, you will have two vents. The Black and Grey tanks share one vent and there is another vent by the kitchen sink.
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Old 03-28-2009, 11:45 AM   #27
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There's one for each tank right? Black, gray and the fresh water too? (Can you tell I don't live close to my trailer?)
You could have 2 or 3, sewer vent pipe covers.

The water tank venting, is very different than the sewer vents.

The black and gray tanks are the only gasket concern.

Andy
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Old 03-31-2009, 02:14 PM   #28
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May be a dumb question....

Are the vent covers installed incorrectly in the first place?

The top of my plumbing vent cover says to vent the pipe 2" to 2-1/2" above the roof. If the pipe is that high, it will have a friction fit with the lower portion of the vent cover, just like a roof jack on a house, i.e. the pipe will stick up through the center hole tightly enough that a thin bead of caulk will seal the area. That would eliminate the need for a rubber gasket to seal against the outside of the pipe lower down. It would also eliminate the need for any drain holes to get water off the top of the gasket, like the old style vents had. Then the only other place to seal is around the outer perimeter of the vent cover base.

Of course, my vent pipe only sticks up 1-1/2", so, unless I extend my vent pipe, I have to have the inner gasket. But it just doesn't seem to be properly installed.

Am I in left field here?
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