New 4100 toilet question

[Atvmos]

I am thinking I may have a vent issue in the main bathroom. When we flush the toilet a bubble comes up first then water and everything else goes down. Problem is the stench goes into the bathroom for a bit. I have the tank valves closed and there does not seem to be a clog in the plumbing. Anyone else have this issue ? Thanks

 

[cookie]

Mind did that when there was a clog in the drain.
You said "does not seem to be a clog", are you sure?

Peace
Dave

 

[123camper]

Ours does that when its full. Don't trust the gauge.


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[Atvmos]

Tanks empty. Just spent 1 hour and did 3 tank flushes. Still getting the bubble that pops up and then the smell. The smell is still there just slightly less. I will go get tank deodorizer tomorrow and see if that helps. This is just the 3rd trip with this new camper. How would I check the vent system?

 

[pcardoza]

Get up on the roof and check to make sure the roof vent is clear. Maybe something built a nest in it! Sure sounds like your vent is somehow plugged.

 

[Atvmos]

Thanks for all the suggestions. Turns out that the line going to the tank from toilet was clogged in the turn going to black tank. I was told this was due to low water volume being used with every flush. I found a lowes near campground and bought a manual snake and very carefully cleared the line..then redumped and washed black tank again....