Missing vent stack pipe cap ???

[Doc Foster]

Am I missing the cap off of my vent stack pipe? This right about between the rear bedroom and shower on 2015 30’ International Serenity. It was there on our last trip 2 weeks ago and I just noticed it on this trip today.
What am I looking at? Is it easy to replace?

[Doc Foster]

Can I just buy a replacement cap, or do I have to remove the old and replace the whole thing?

[overlander63]

You'll need to buy the whole thing for about two bucks, but you can take the cap off the new one, and put it on what's there.

[drbrick]

I would replace it with the 360 by lippert industries available on Amazon better than OEM

[dznf0g]

I would.replace with stainless or galvanized. Looks more AS appropriate.

[A W Warn]

It's cracked (second photo)
The whole thing needs to be replaced.

[dhroberts]

Happened to me as well - not sure of the cause. When I looked into a replacement, I found 360 Siphon by Lippert Components as it was: a) recommended by other Air Forum members; and b) it employs an interesting siphon, air pulling dynamic. Install was very easy.

[Doc Foster]

Originally Posted by A W Warn

It's cracked (second photo)
The whole thing needs to be replaced.

Thanks, that is what I was afraid of.
Already ordered a replacement.

Thanks to all that replied.

[rucos]

Good short term fix is a label off tuna can ...its silver..... it worked great on mine until replacement ....just screwed into remaining plastic tabs .... I dont think anyone ever noticed

[tbashin]

I'd trim the pipe just a little too. May have moved/flexed up into the cap and knocked it off. Should be a little space for breathing anyway.

[Doc Foster]

Thanks that is a good idea. Part came in yesterday. Will race it today

[Doc Foster]

I replaced the cap with a new one today. I realized that the black vent pipe coming up out of the roof was roughly cut originally at the factory and was actually about 1/8" too long, I could not get the new one on properly. I am surprised that the original cap stayed on for that many years. It was a matter of a few seconds to cut about 1/4" of the end the black plastic with a hacksaw. Now it is a clean cut and the new cap clicks on properly and appears quite secure. For only a couple of dollars, I ordered an extra one for a spare to keep on hand.