We first bought a used popup tent trailer in poor shape. Then a new one in 1992, which was loved until our youngest child grew up. Then we got a bit of motorhome fever when camping at our favourite BC park and visited a German couple next door who spent their months of maternity leave in North America, buying a used one in California and driving to Yukon and back. That MH looked really comfortable in the rain.
Water shortages are due to showering. We use campground showers and stop at swimming pools. Our water tank and waste tanks last 5 or 6 days for the two of us so we only need to find a dump and fill site every 5 days. We never hookup to water, sewer or electricity. One solar panel (100 watt) provides all the power we need. If you don’t have solar, I recommend a battery monitor that shows the per cent of full charge for the house batteries. LED lights make a big difference.