Forum Discussion

Eliphalet's avatar
Eliphalet
Explorer
Apr 27, 2014

Black tank vent

I have a 2002 Coachmen Somerset 285rkw. There are 2 vent caps side by side. My question is:which one is the black tank vent? Thank you all in advance
  • Side by side......
    Do you mean they are side by side across width of rig
    OR side by side front to back of rig?

    Side by side front to back.....
    Which tank is forward? Black or Grey.....Black tank forward..forward vent should be black

    You can always stick a garden hose into vent and see which tank has water run out.
  • One way is after using the toilet go up on the roof and smell each vent. Or if you are a smoker blow some smoke into the toilet and have someone watch the vent(s). Or pour some Pine Sol into the toilet, etc... Hopefully someone will have a better way.