I will contact the MFG of the pump before I try it. The gas issue worries me the most, because there is some gas in the tank right now due to the dealer checking the unit out for the walk-thru. I do think I could get the tank rinsed out. There are two tanks on my unit and the fueling nozzle would work becouse it is smaller than a diesel nozzle. If I try this I will repost and let you know the results. I am still not sold on the idea.
Thank for all your input