Good morning everyone. I have been lurking here and reading for a couple years to fix my pool challenges with great success, but currently my pool is running away from me. The water is clear but black algae rules. My chlorine is getting eaten so fast I can't keep up. As of this morning the test kit gives me the following numbers; Chlorine < .5, Ph 6.8, Alkaline 110, Hardness ~800 (maybe more, but the color change was not so exact), CYA < 100. So I know that my water is really out of whack, and I've already determined to drain the pool and start from scratch this winter. With the temperature over 100 at midnight in AZ I can't do much more at this point. I appreciate any help you guys can give me to get the numbers more into balance and do something with the black algae.
Have a great day.