Two Fuel Pumps?

ok so i did have a cut in my shore power cord, which we have now taken care of so hopefully that will take care of the shocking issue. But as to the whirring, we are not hearing anything. And we are waiting on a friend to come back out and check to see if the power is reaching the fuel pump. My main concern was if there were two fuel pumps and where the second one would be. We have looked and did not see one but just wanted reassurance. I know realistically we are gonna have to lower that darn fuel tank that is full of gas.....plus i am sunk in the mud a bit on that side so we are gonna have some fun! Thanks!