Corian is a great material, but it isn't impervious to staining and discoloring. Here's a quick, easy tip for whitening a Corian or similar solid-surface kitchen or bathroom sink. Whether in your RV or in your house, this simple technique will rejuvenate even the dingiest and most discolored sink.
When our RV's sink first began getting dingy and stained, we tried whitening it with bleach, which we'd heard was very effective. Bleach is just so smelly and toxic that we decided to stop using it. Here's a better way to get the job done.
We don't pretend to be experts on any particular RV topic, and mostly know about maintaining our own rig. But many systems are the same on different RVs. The advice we give works well for us, but be sure to consult a professional technician if you're unsure about working on your own RV.