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I'm sure there is a post related to this somewhere. How much chlorine loss should I expect on 11 hours full sunlight. Numbers are FC 2.5, CC 0, TC 2.5. PH 7.7, TA 90 and CYA 25-30. These were measured late this evening after topping off Chlorine 24 hours earlier and having the full sun today.

What does it mean if I get no color change when adding 1 heaping spoon of 870 powder, then two. No change to pink. This has happened only this last test. Previous test 3 days ago showed up fine. FC, CC, TC ? PH 7.8 TA 100 CYA 40

Hope this finds all well as we begin the summer! Opened my pool Memorial Day which was about 4 weeks behind where I usually am, but to the point; 1) opened normally everything looking good, fair numbers for start-up but being behind my schedule a little algea. 2) took about a week to look great...

Didn't know where to put this and apologize if in wrong spot. It's been really hot here the past month and pool water is about to get to the to warm to enjoy temp. I have run the pump continuously for the past 2 months and only occasionally turn on the pump to the water feature. The ? I have is...

Just wanted to say thanks to all the admins and users who helped with my recent problem. After finally taking the time to review all the sight, BTW, for those who haven' done that you will learn so much, I have solved my chemistry problem and the pool looks better than it has all season! I would...

On Monday June 28 tested using TFT Test Kit and got the following readings; 0 FC .5 TC .5 CC 95 TA 7.6 PH 108 CH 40 CYA Just to verify took sample to pool store and my readings and Pool Store were right in-line except for CYA they showed 19. AT their suggestion I added 3 lbs of stabilizer...