Water.
When I nomaded regularly out of a pickup, Id keep 2 5 gal plastic cans and a couple smaller ones to transfer into for use. I still didnt often go out for extended times away from towns. Tip, the 2 liter plastic pop bottles worked great for winter use. You can bang them on the truck bumper to break up the ice and get enough water freed up to brush your teeth. Grey water was in a basin for dish washing and wash-ups, it was tossed/spread out wherever handy. Nobody ever thought much about it and Id never heard that was bad. A tank would dump more water at one time and place, but is grey water a problem or hazard? One cabin I lived in, the grey water pipe went out on the ground, the grass grew really well in that area.
Ive heard of people in desert areas using an evaporation basin to get rid of grey water, anybody here done that?
The black tank in my old Winnebago would take months (6?) to need to be dumped, but it only had the toilet and bath sink going into it, I avoided using that sink so it wouldnt fill the black tank up any faster than needed. The grey I just let go on the ground, I never was aware of any problems from it based on the years of living in the cabin with the grey going out on the ground. Before anyone has a cow, it was on my own land. I lived in the winny maybe 2 or 3 years off and on total time.
