Vent stack covers

[silverhawk]

Hi, All.
This might be one for Inland Andy, or other resident expert.
I've noticed that vent covers have no topper to them. It seems to me that this could be problems for trailer owners here in the great midwest. One day it will be 45 and raining like H... the next day it could very well be 5 degrees.
Where I'm going with this is having seen ice blast out the bottom of various types of containers by forming a cap of ice, then expanding down and outwards. Could'nt the same thing happen inside of a vent stack? I may be off base here , but it seems like a ligitimate concern. Can someone answer this for me?
Does one cover these vents during cold months to negate such problems.
Thanks, Bob

[overlander64]

Greetings Bob!

I haven't had any particular problems with my Minuet and the stock open drain vents; but on my Overlander the previous owner modified the vent stacks in an effort to reduce the amount of water forced out of the traps and into the sinks and bathtub when traveling. In the photo below, if you look at the roof, you'll note that the white PVC pipes at the drain vents have a 90 degree bend and point to the rear:



My Minuet has been stored outside in the Midwest all of its life - - its previous owner lived in Southern Indiana - - and there is no indication of problems resulting from the "open" drain vent stacks.

Kevin

[markus]

I installed these little devices on my pipe vents.
And was also told that they were not needed. But with all the snow we had so far I'am glad their there.Who knows? they might even extend the life of the gaskets.
Take a look at my member photos!

~mark~

[john hd]

you can add some 1/8" holes to the lower edge of the cover to allow water to escape.

my '92 came this way from the factory, we added the holes to rickstream's '74 excella when we replaced his sewer gaskets.

here is a photo of what andy at inland offers for replacement with holes.

john