Grey tank smell in Windjammer 3001, solved.

[Handydc]

For some time have had a gray tank smell in the camper. Tried everything.

I thought I would try installing a Cyclone vent on top of the camper to help create a negative pressure in the gray tank. I removed the stock vent top fixture in prep for installing the cyclone and low and behold the 1 1/2" pvc pipe coming up from the tank was short by about 3-4" so it was never sealed to the inside of the roof vent assy. allowing tank gasses to get into the walls/ceiling areas. The cyclone vent had enough length to mate with the tank pipe so had a good seal now. SMELL GONE.

Hope this may help others with a similar problem.