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Raised fc level to mustard algae shock level as water is crystal clear and no cc, with cya @ 55 raised to 36. Little more than necessary, but emptied the carboy. OCLT: tested 36 at 2 am, 36 at 10 am. No cc. 10 am to 3 am (long work day ): 36 fc, 0 cc dropped to 22 fc, 1 cc. Does the...

Vacuumed, brushed, and cleaned the filter. Have to keep leaving to work, but getting back every few hours and getting FC to 30 before leaving, doesn't drop below 24.

Good morning Too much work had me busy last week, and I went 3 days without testing or feeding chlorine. I can usually go 2 days without issue, this time FC level fell too low, to 2 ppm. I came home to find yellowish patches on the wall on the north facing, shaded side, which brushed off for...

I know this topic has been discussed, and the previous posts led me to know exactly what was dropping white feces sacs in my pool and why, but now that I've more or less eliminated the bird problem and cleaned the coping with a hose and got as much off the floor with a leaf rake as I could...

Cool, then CH steady at 500 and TA at 90. I'm assuming pH should be kept in the middle as much as possible, around 7.6?

Ran a full set of numbers again: 80 F pH 7.8 FC 12 CC 0 CH 450 brought first noticable color change, two more drops to 500 brought full change, which are we going for? TA 80 again brought change when the drop went in but none when swirled, 90 to full change CYA 65, pretty confident on this...

I did multiply, CYA is 60. I did the test standing outside under shaded afternoon sunlight. I dripped test water into the view tube until the black dot was absolutely occluded and all I saw was uniform white. Ran 50/50 twice, both put the water right at 30 mark, then straight test brought...

I could definitely be off by a bit, calculated by taking measurements of the size and the depth front and back, assuming a constant slope, and the pool is off square, so had to do two rectangle calculations and about half the second. Pretty significant margin of error. Click here to see the...

48 hours after my first post, I ran some tests and am writing this. Haven't added bleach since I pulled the trichlor floater 2 days ago. In 48 hours, FC dropped from 13 to 8.5. As per my previous CYA result of 100, I added about a half gallon 10.5% pool store chlorine to bring it up to a goal...

Hi, I'm Oscar, new to the board. Just bought a house with an IG pool, and luckily it was in decent shape to begin with. Got my TF100 today, ran a couple tests more than once to confirm accuracy, here are my values today... 12,000 gal 80 deg F pH 7.5 FC 13 CC 0 TC 13 CH 500 TA 90 CYA 100 I...