New kit! Real numbers. Now what??

I am maintaining shock level and I know I should ignore pH during this process but I have pretty bad scaling on walls so I lowered pH yesterday. It was 7.2 at 8 pm last night and at 12 toda it was already 8 again. What is causing my pH to shoot up so fast?
 

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Did you pull the light? Seems like I read about huge green messes behind the light. Do you have on? Inside the skimmer mouth seems to be another very popular place for green to hang out.

I assume you are brushing your walls and vacuuming your debris to waste?
 
passionsrlz said:
No light in pool. I scrub and scrub. I almost pass but don't. It's been a month now but what I didn't know is I was working with a bad pump that was dying. I replace the pump and water cleared in 3 days. Just can't seem to get totall over the hump.
It's a long shot, but there was someone else recently who couldn't pass the CC test for weeks. Turns out he had algae growing in his sample bottle!
 

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