I need to buy something to clean my black tank. I've found Valterra and a Camco flexible wands. In looking at the video the Valterra doesn't look as though it puts out as much pressure as the Camco. I...
If you have a week or so another alternative is to use a bottle of septic tank cleaner (available at any big box)- fill the tank with water and let the cleaner do it's job.