How long will cheap oil transfer pump survive pumping water?

Looks like that old girl has seen some hard work in her life
Definitely, my grandpa drug it home from a salvage yard with a stuck engine sometime before 1976 and fixed it up. It was pretty well used-up before he even got it. He used it to run in parades over the years, including pulling our family on a hayrack in the bicentennial parade in 1976. It meant a lot to my mom and her siblings to see it in a parade at least one more time. We did, at least, make it past all of the parade-watchers before the carnage. The tube and rim held to drive it back up on the trailer and to unload it at home so the day could have gone a lot worse.