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So I had the filter cleaned and it was green! I have also been more careful about brushing the ladder, I believe that May have been part of the problem. Overnight chlorine loss was zero last night. The problem is that I ran out of r-0871 drops so I can't test the water. Is there some other way...

Thanks! Will def check the light. I have been brushing behind the ladder.

I am using my DPD test from last summer. The powder is a little blackish. Would that make it not accurate?

Those are also fine. CC is 0.5 and pool is crystal clear. Thanks.

I have algae in my pool for the third time this season. Each time I raise the chlorine level to SLAM level and maintain it until overnight chlorine loss is less than 1. Each time, after passing the overnight chlorine loss test I let the chlorine drop to target level of 7 but when the...

I just went to a pool store and they said there's no copper in the water. She kept saying that Theres an algae problem. Is it possible that there's algae but no chlorine loss overnight? should I look into any other possibilities? there is nothing growing on the walls... thank you

I noticed a little green tint on Friday and it has been getting stronger since. should I try to bypass the heater and run the pump? I am not running the pump now. Looks like there is a valve on the heater pipes. Just wondering if I close that valve, would there be another valve somewhere in...

I generally keep my FC 5-7 but I wanted to an overnight chlorine test so I didn't add chlorine until this morning. There was no overnight chlorine loss so I assume no algae. FC is higher now since I added bleach after I tested. i have TF-100 test kit.

Sorry it's up side down... can't figure out how to flip it but colors the same. thanks

Heres a picture of my heater. thanks

Hi all, this is my second year managing my pool and last year was fairly easy thanks to TFP. my water is clear but has a strong green tint to it, and based on what I have read here I suspect that it is a copper issue. my overnight FC loss was 0 and I a have a heater that has not been working...