Hi all. I’m using the HTH 6 way liquid testing kit. I recently drained and refilled pool. Our source water has very high TA (500 ppm) and PH (8.2). I’ve been using muriatic acid to bring down PH/TA, before adding chlorine, and finally started making progress today, then noticed green algae forming on walls and floor. CYA is 0. Current PH is between 7.2 and 7.5, TA is 310. What is my next step? Do I need to SLAM? Raise CYA first? Just add liquid chlorine? 


