Add a sequestering agent - like metal magic, metal magic by proteam is supposed to turn metals into crystals so that they can be filtered out. I haven't tried this product yet, but the other sequesterers do not get rid of them metals, they keep the metals in suspension so that they do not fall out onto the pool surface, or color the water. The other thing to watch is to keep your ph low except if using metal magic, it needs ph at 7.5 or higher) while getting the chlorine up to shock levels. When there is metals in the water, I strongly suggest that you use plain bleach to chlorinate the water. This way you can take the chlorine up slowly, and cal hypo shock sometimes reacts badly with metals. While taking the chlorine up, check for staining. If staining starts, add more sequesterer, making sure the ph is no higher than 7.2. Feel free to ask any questions you may have.