I recently inherited responsibility for keeping up the pool. Before I got it figured out, it was dirty and green and swampish for a while. Now that it's clean, I'm noticing that stains that existed before now seem to be intensified. They have gotten a lot worse. Is there any way I can get rid of them or fade them even just a little. I will try to attach a photo, but it may or may not work. Please someone help. I'm only a teen and I'm not really sure on all this stuff. If you need more pictures, just ask. The one I posted isn't the best but its of the bottom of the pool.