When we filled our pool (Coleman metal-frame 18'x48") we only filled it about 3ft deep (around 5700 gallons) to start with. I didn't want it too full for my youngest. We've had a ton of rain in the last few days and I calculate we've added nearly 500 new gallons of rainwater and it's still coming down. This is good in some ways because we filled from the well and I'm struggling with high iron and high TA (250 last time I tested) so rainwater is welcome and there is room in the pool. However, we were just gone on a trip and I had someone adding a maintenance amount of chlorine, but our PH got high, over 8ppm and the water got cloudy. I've ordered more metal sequestrant, was letting the chlorine fall so I could add it Monday, and meanwhile am trying to filter out as much of the iron as I can while I wait for it to arrive. Now I'm wondering if I'm going to have to SLAM because of the new water? If so it will oxidize the iron in the water and turn it brown, and I'll have to leave it like that while waiting for the chlorine to go down enough to add the sequestrant, plus my PH is still high. What order do I do this all in?