We have a 40 ft sailboat that I stay on for weeks at a time. I have to show non boaters how to use the head. Ours is a manual hand pump. Don’t flush the tp since we only have a 25 gallon tank and it’ll fill up pretty fast. It’s a small space so if you have to do #2 please walk up to the facilities. I took the shower out so we use the ones in the facility. Don’t drink the water that comes out of the faucet. I use sweetener but it stays in the tank too long. It’s probably ok but I keep bottled water on board and there’s a faucet right outside that I fill a gallon jug up with for coffee and to cook with. The cooktop and oven are electric and we’re hooked up so no problem there.
I could live on our boat even with that. You just get used to it. Lol
When we were anchored out we’d use the marine bbq to cook with and a solar shower in the cockpit. You just figure easy ways around stuff.
The floating house I rented was off to itself in a cove some distance away from any marina, anchored more or less permanently in place with an attached floating dock for the boat you use to get back and forth. The marina has a specialized boat with a crew that comes out, pumps the gray and black tanks, fills the freshwater tank, fills the propane tank, checks the anchors and adjusts them if the water level has fluctuated (and it does, sometimes majorly, in Tennessee Valley Authority lakes). Some of the floating houses had rainwater catchment systems or water filtration and purification systems using lake water. They all had solar panels. It’d get old having to be in the weather for a half hour every time you wanted to go anywhere or just to go get groceries, I’d think. But, for a week it was very pleasant.