Sewer Tank Vent Location?

[anoldman]

I have a 2011 Gulf Breeze Sport 28RLF and want to add a Cyclone sewer vent to reduce the tank odor. My roof has 3 vents, one over the sewage tank, one above the wastewater tank, and one at the front of the camper over the bed. Does anyone know which vent is for which tank? Thanks in advance!

[GStream40]

One could use their nose at the vent to determine what is what. :D

But I would guess the one over the sewage tank is for the sewage(black) tank. I have found that sometimes the gray water tank can smell as bad as the black tank.
For that reason I have put vent tops on both tanks.

Ron

[anoldman]

Thanks for the reply. I figured maybe the vents would be over their respective tanks but that third vent up front got me wondering. Yeah, I thought about buying two of those Cyclone vents but figured I'd do the greatest offender first and then order another if needed. Now all I have to do is sniff :oops:

[anoldman]

Well, I quickly located the sewer vent pipe using the smell test :shock: It was the one directly over the tank as expected. Still not sure what the vent at the very front of the camper is for. Anyway, I installed the Cyclone vent but unfortunately there was no noticeable change in the odor issue. The sewer vent is very close to the bathroom roof vent so the odors may be coming in the opposite direction from what I'd imagined. Oh, and if anyone decides to install one of these, do not pull up on the top of the Cyclone vent to remove it from the pipe! Mine separated and was very difficult to put back together again.