Go to Home Despot and get a small valve that fits between the shower head and the hose, it is a button that can be pushed with one finger, my wife had a hard time with the shower head lever so I installed the button, it makes taking "navy" showers a lot easidr, one had needed rathdr than two, one pusg of button wzter off push button on other side wztdr on.
We got a couple of basins that fit in the sink and wife would was dishes and cutlery in one and rinse in the other, this waster was then given to the plants and trees, we started this when we had the VW bus that I converted for camping.
Every outi g will be a new adventure and will also turn a light bulb in your head as to what you can do for next trip as in getting stuf or modifying other stuf.
Enjoy the time.
navegator