Just wondering. We went away for a few days and got a ton of rain and now the pool has 0 chlorine in it and some light green stains around the pool. I ran a vaccumm over it and they kinda go away and I added enough bleach to bring it up to 5 PPM.
People swim in lakes with lots of algae and no chlorine and live to tell about it.
I'd get some bleach in there and then jump in. And while I was in there, I'd work over the spots with a brush. When everyone's done swimming for the day, I'd adjust the pH to 7.2 and then raise the FC level to shock level for the CYA and let it go to work on any residual algae while there's no sunlight stealing it. You need to SLAM, you might as well get started now.
I have a test kit that can do the FAS DPD test. I have no combined chlorines.Which test kit are you using?