All ActivityMost RecentMost LikesSolutionsRe: Cleaning Holding Tank Sensors Close tanks. Fill a 5 gallon bucket. Pour into the black holding tank. Open black tank to septic. Fill again. Dump bucket in toilet. One more time. It just happened to me last week not works Re: Cleaning Holding Tank Sensors Close the tank. 5 gallon bucket. Fill it a. Outlet time and pour it in the toilet. Then dunno the tank in the septic. Just happened to me last week.
