Hi, this is Ann Myrick, and welcome to my bathtub, I'm going to show you how to clean fiberglass surfaces today, so I'm going to do it with my bathtub. What you want to do is, always use a non-abrasive cleaner, you could use water and vinegar, or you could use a commercial product. And what you're going to do is spray it, and then you want to just, a circular motion, getting it very clean, and then flushing it. Now in the bathtub I'm going to flush it with water, but if you're using it in the sink, you can just fill your sink and then use it that way, but just flush it with water. If there are extra areas where you need to go back, and there are a few little stains that you want to add a little attention to, you can go back and spray your detergent on the place and let it sit for a little bit, and then flush it with water, and it'll probably just go right away. This is Ann Myrick, and that is how you clean fiberglass bathroom surfaces.