Hello all I just set up a above ground round pool 18Ft by 48 inch deep. According to calculators I found it’s a 7,630 gallon pool. I added my first treatment of chlorine and checked my pool level today. My PH seems good but my Chlorine level was around 0.4 PPM. How do I find out how much more chlorine I need to get up to 1 PPM? Also how long after adding chlorine do I need to wait to check levels/or swim? Thanks!
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