Curious to see how long we could boondock in our Forester without power & water. Made it 6 full days. Did cheat a bit using nearby rest room. FW tank was empty & black & grey were full to the brim. Also ran the generate a few times for coffee pot and microwave.
Had 4 big kids and two half pint grandkids. DW was worried about not having electric but she agreed it worked great. All the lakefront sites at Kelly's Island State Park don't have electric.