Thanks for your replies . Yes, regular house plug where washing machine is plugged into and I do have a fat cord like the one on the rv. I'm still hoping to get an electrician out here to take care of problem the right way but in case I can't get one I was hoping this might work. We won't be using anything in RV except a few led lights and the washing machine has it's on breaker with nothing else on it. My grandson won't be here until next wekend so i will try it out tomorrow. keeping my fingers crossed.