I have a built in light strip around the inside of my pool. Over the winter parts of it turned black. I am not sure what it is, but the pool brush can not scrub it off. I even tried a power washer and still no luck. Does anyone know if there is anything I can do?
Here is what it looks like: http://i.imgur.com/BhX3Cw4.jpg
Thanks!
Here is what it looks like: http://i.imgur.com/BhX3Cw4.jpg
Thanks!