All ActivityMost RecentMost LikesSolutionsRe: Black tank smell in coachThis device does both tanks. I have tank penetration kits for DIY installation. It's on a timed cycle where it feeds ozone rich air into the tanks, which is rapidly broken down in the presence of the wastewater. No odors from the vents, so odors cannot find their way back into the coach. Powered by 12 volt DC less than 7 amps. Not only does it remove odors it also kills most all pathogens in the waste making it safe to handle while dumping. I also make air purifying/sanitizing device which do not produce ozone to rid the coach of odors from cooking, pets, smoking and destroys airborne pathogens such as viruses.Re: Black tank smell in coachI have 30 years as a sanitation tech on both yachts and r/vs. The idea is to kill the odors before they go out the vents. There are a lot of factors that can draw the odors into the coach, plus grey water odors escape through the drains. By diffusing the ozone in the manner I use ozone is broken down rapidly it's not really in contact with any parts rubber or otherwise. I've been running one for over six months...no odors..no failures..of either the machine or toilet parts.Re: Black tank smell in coachI have come out with a new product. I have a machine that diffuses Ozone into the grey and black water tanks..no odors and as an added benefit it kills off most of the bacteria and pathogens in the waste making it safer to handle.