Bad smell around bathroom area.

[jmpgino]

We were down at the beach a month ago, windows open and fans going as usual. We always use the showers and during the day the sites toilets. On leaving cleaned the tanks out and came home. Hooked her up to home shore power, cleaned her out and shut the door.
Been doing some odds and ends and noticed a bad smell in the back of her, it’s a read bed 25 footer. Could not figure out the problem. It suddenly dawned on me and what I thought was the problem was correct.
WE TEND TO NEVER USE THE SHOWER, and it must be a good year since it was last used, we use it as a bit of a storage area. Living in Georgia it’s rather hot down here.......

So have any of you figured out what it was yet !!!!!!!!

The water had evaporated from the shower trap and the smell was coming up from the tank. Obvious fix pour water down the shower drain. Now I will have to do this on a regular basis.
Anyhow thought I would share this with you.
Cheers,
James.