Redoing our upstairs bath on a budget. Was planning on just refinishing old cast iron tub (it has some rust spots) but it had to be removed to fix some flooring issues. Now that it's been removed I'm wondering about replacing it. It would have to be Since we have a well and septic system, the floor gets a lot of abuse from iron in the water will only consider refinishing jobs that include tubs and surrounds. The ease of replacing the wearing-out pan depends on the wall finish. .