I added the sequestering agent two days ago, and I think it worked, but \I can't be 100% sureright now b/c the water is now very cloudy so I can't see the bottom of the pool from the pool deck. I haven't had time to dive down and look at the bottome of the deep end, but some stains that hat started appearing on the steps are gone. I checked the chlorine and is is 0, and the PH is 6.8. I've also now found mustard-colored spots on the steps and walls of the pool which brush off with no effort. I ***ume those are due to the lack of chlorine, which is due to having added some ascorbic acid when diagnosing the stain and the sequestering agent after that. Does that sound right? If so, the question is how quickly do I bring the chlorine back up to get the water re-balanced? Can I rely on the SWG or can/should I add some trichor sticks to the skimmmer? The final added complication is that we're scheduled to have the pool closed in 9 days, and I ***ume I need all this cleared up by then.

Thanks