A couple general questions about travel trailers

I guess it all depends what size trailer you get. All I've seen have water tanks. If CG shuts of water. just drain your system. Most have removable propane tanks but you can get a larger tank and set up with a local propane supplier. Depends on the CG for sewer. Electric runs 30amp up depending on trailer. Tank less water heater is OK if you can supply it with enough amps for electric or enough propane.