Just got my pool redone, this means chipped all the way to the gunnite and replastered. And now as im filling it its about half way finished I see a shot load of rust stains popping up. So I stopped filling it at halfway like a friend told me and called the people who done it who have yet to return my call. Why is it rusting like this? Should I cancel the second half of the payment? Anyone have any ideas or thoughts on this? Its an inground pool. I do have pictures of before and after which I can try to post. All I did was run water from the hose to the pool which they are the ones who actually did that cuz they said I could start filling it as soon as they were done.