I'm wanting to get out on the boat this sat. because the weather is supposed to be nice here, but i have an aereator pump w/ a small crack in it. I don't want to spend the money to replace it as I am leaving for Colorado in two weeks. So my question is, has anyone here ever put like bondo or some kind've bonding material on a crack on a pump. I believe it's just a hairline crack and there's no real water pressure on it and I don't intend on using the aereator this weekend? Any suggestions would be appreciated.