We're remodeling our first bathroom and learning a lot. I'm planning on having the existing cast iron tub refinished after tiling everything. But before I tile, I need to figure out what to do with the tub drain schedule.
I don't know if I should keep it or replace with PVC. It looks like it's brass and might last for a long time, but then again maybe it won't? In the pictures, you can see the overflow part looks a bit icky (corroded?).
What's the best practice here? To keep it or switch it out? When I tile everything I won't have access anymore. The schedule isn't PVC but the rest of the drain is.
Beautiful photos of gross drain: