Smell throughout RV when emptying black water tank

[Michael k]

Every time I empty the RV tank it smells through the whole RV is there something wrong that anybody had experience with? I don't have a problem when I flush it only when I empty the tank.

[loadtoad1a7]

I am having the exact same issue, except it also happens when I flush. I replaced the stock vent cover with a cyclone vent cover. I haven't used the camper yet since i installed it but will be using it for 5 days later next week. I hope someone posts a reason for it, it makes it extremely hard to be in the camper when this happens.

[gouda272]

I had the same issue on my 2014 Wildwood. also had one of those cyclone's on it. I was able to mostly fix the smell by completely cleaning out the black tank i had one of those sticks that you put in the toilet connected to a hose and completely power washed the inside of the tank out. That seemed to help quite a bit. I think i let the tank get too full and some of the paper got stuck up into the air vent pipe. At least this is my thinking. I had even flushed water down the air vent but that did not seem to help.

[MilCop4523]

Try closing the roof vent to the bathroom before you dump the tank. for some reason fumes get pulled back into the washroom if its opened.
I always close mine and have found a difference - not sure why. I also added cyclones to the vent stacks which helped with the stench after stopping for the night when hauling.

[sbpierce]

Are the gray water valves open?

[loadtoad1a7]

I ended up putting 5 gallons of water and softener mix in mine with some pine-sol. Drove 8 hours to camp and than used the black tank flush and flushed the hell out of it. Now whenever i get done camping I make sure to flush until absolutely nothing comes out but clear water. I don't think the black tank flush does that great of a job without having to fill and empty the tank 4 to 5 times. Does anyone have a better solution to flushing the black tank without taking forever to do it? Before I get flames I only do this at a site with full hookups not at a dump station.

[Pjs63]

This happened to me when I forgot to close the gray water tank valves