The floor drain, seemingly small and inconspicuous hardware, is very important. So when choosing, not only need to pay attention to the drop of ground drainage, but also pay attention to the problem of floor drain material. Although copper floor drains are not easy to rust, the quality of copper is no different from ordinary floor drains.
For rusty copper floor drains, there are 5 solutions:

The copper floor drain is rusty and green patina appears on the surface. It looks like it has been used for decades. In the first method, we can wipe a cloth or sponge soaked in vinegar with an appropriate amount of salt.
If you don't like the sour taste of vinegar, you can also replace it with lemon juice and rub it with salt. This can be said to be method two. For copper floor drains with serious rust, you need to melt the wax, then add sea salt, wipe it, and wipe both sides to remove the rust. This is the third method.
The other two methods are more biased. One is to use kerosene and tooth powder. Dip a cloth moistened with kerosene into tooth powder to wipe the patina. The other is to mix fine wood, wheat husk, talcum powder, and vinegar into a paste in the ratio of 16:24:6:5, and evenly apply it on the patina. After natural air drying, the patina is removed.
If you want to make the floor drain brighter, you can wipe it with smoked tin foil or sawdust, dipped in salt, and the effect is extraordinary. After listening to my neighbor, I immediately got the materials and started to dry it. After a while, the floor drain became brighter than before, too smart.