clorox bleach in diesel

I would not start the engine.. Find your fuel tank and look under your coach.. Many large tanks such as yours has a pipe plug on the bottom for draining the tank.. If you are mechanically inclined you can do it yourself but it is a little messy.. Get a empty 55 gallon drum to pour the fuel in and a large drain pan and a funnel.. How much do you think is in the tank?.. I would get it out of there within 72 hours as bleach is highly corrosive..