I wouldn't worry about the water and dirt and stuff thats not a big problem unless you go to some strange gas station. But I would expect the fuel pump to take a crap fairly soon. I ran mine almost dry once to the point were when I took a right turn really fast all the fuel went to the one side and the truck sputtered a little until the fuel hit the pickup again. A few weeks later I was having some minor starting problems, and a few more weeks and the pump completely died. I talked to someone at the dealership when I was getting the new pump and pretty much he said that when the pump spins with no fuel going through it it spins to fast and burns up. Hope your luck is better than mine was or you will be looking at a big pain in the ass and some $$$ to fix it.