my boat stinks
When I moved aboard my boat last year - it had just had a new head installed. During a trip to Catalina - I used it for the first time...using seawater to flush with...
Soon after I realized that there was a smell coming from the head...
Two changes have made a world of difference.
First - I pour fresh water into the head to flush. No more odors.
Second - I installed a solar powered vent fan. This eliminates any slightly musty odors as well.