When we're boondocking or at dry campgrounds we can last 12 days before having to dump. By that time we're ready to move to another spot. If where you're staying has a dump station and it's not too far away from you, you might consider getting a blue tote. Keep in mind that once filled they are very heavy and unless you replace the wheels to a heavy-duty type they don't pull that well, especially on a rough road. They're not made to haul a long distance. It might be worth it to you to just drive to the dump station. Good luck!