On my FB the shower vents through the roof. The vent under bathroom sink is for the sink. Also the kitchen sink vents under the sink & toilet vents through the roof.
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Danny & Linda
Full-timed 10+ years
Former '13 FB owner
Traded '13 GMC Denali DRW D/A
Currently rv & truckless
Replacement undetermined
On my FB the shower vents through the roof. The vent under bathroom sink is for the sink. Also the kitchen sink vents under the sink & toilet vents through the roof.
On ours I don't see that we have a vent at all. If you remove the basement wall you'll see the shower appears to drain directly into the gray tank. So if there's a vent it's downstream a bit.
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2014 Redwood 38BR, Fulltiming
2013 Ford F-350 CCSB 6.7L 4x4 SRW, B&W Companion Hitch, Air Bags
I think you will find each WASTE TANK has a roof vent, and Antisiphon vents are provided on each waste line that exceeds a certain length away from the tank.
__________________ Brad & Dory - Lone Tree, CO
CURRENT - 2013 Itasca Meridian 42E/2013 Wrangler 4dr Sahara
SOLD - 2014 Redwood 36RL/2014 F350 DRW
On ours I don't see that we have a vent at all. If you remove the basement wall you'll see the shower appears to drain directly into the gray tank. So if there's a vent it's downstream a bit.
The vent is maybe on the grey tank?
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2013 Dodge Ram 3500 DRW 6.7 Cummins
2017 SOB
Thanks for the info. I know I have a shower drain vent issue because of the odor and the fact that the kitchen sink gurgles when the shower is being used. I will check the roof tomorrow, but I remember only on vent previously.