I have a 2013 Jayco Premier 351MKTS. I am having a problem with a strong sewer gas type odor coming into the unit when I use the Bathroom fan or Fantastic fan. Both fans are set on exhaust. It is most...
I was having the very same problem. I checked everything and couldn't find the problem. I bought a flush king and started back flushing my grey tanks and the problem is gone. No odors for the past 3 years. Hope this helps.