Smell after flusing the head

[Chillin]

2002 260 Sundancer: on every flush now I can smell the sewage.  I had the marina fix this issue before now a year and a half later same issue.  What am i looking for to fix this issue myself.  I will be asking them this week what was done to fix the issue last time so maybe I can get a idea.

[SeaMax]

There is a filter on the holding tank vent line that needs to be replaced. Your owners manual should show the location. 

[Chillin]

Just purchased the filter for the holding tank today.  With in a week, I'll start the adventure.  Fingers crossed.
Billy "Chillin

[Chillin]

Easy Peasy, I've changed my "holding tank vent filter" today.  Whewww, it only took 15 minutes.  I think I saved a few bills today. Now, I'm Chillin.
Billy

[Lou_Ditomo]

Add some white vinegar to your tank and it will hold down the oder.