[VAC] Another idea on black water tanks

["phil patterson" <patermichael@xxxxxxxxxxx>]

Last summer at Sturgis we met a couple who were truckers. They had a new 
semi tractor with a nice sleeper on the back of the cab. It had queen bed, 
kitchen and a bathroom. The black tank was what he called a cassette unit. 
It was an option instead of a fixed tank. The cassette looked like a 
suitcase with handle. It slid into a compartment and somehow mated with the 
sewer system when in all the way. What was nice was they could pull the 
cassette out and carry it with them to a bathroom and dump it down a toilet. 
   Phil