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Reagent is about a year old, stored in my garage. I took a sample to the pool store and it tested at zero cya. I'm thinking the first test was the anomaly. I'm out of reagent any way so I'm going to order more and add some granular stabilizer. Sound about right?

Oh, the stabilizer was about half a year old and had some black stuff in it. Probably should have bought new stabilizer...

I tested my water and the cya level was at 25. I added half a gallon of liquid stabilizer waited 24 hours and now cya is much lower. I can fill the whole tube and still see the black dot. Tested a second time this morning after 12 mire hours with the same result, tube full and the black dot is...

FC 17.5 CC 0 TA 110 CH 250 CYA 0 Did not test PH as the Chlorine was so high. The FC level had dropped to 0 so I was going to SLAM the pool. I Added chlorine last night which is why FC is so high but forgot about the CYA test until this morning. I use the TF-100

I just tested my CYA and it tested at zero. The test was not cloudy at all. I've searched the posts on this site and have seen the threads about the anaerobic bacteria that converts CYA to ammonia. I broke a line a few months back and had muddy water pumping into the pool for a couple of...

Still looking good. Bringing the cya and calcium up after the accidental water change.

Broke my drain line yesterday while working in the yard which resulted in significant water loss from the pool. I was able to repair and get the pool circulating last night. Added chlorine last night once pumps were running again. 8:30 AM FC 22 CC 0 CYA 25 Added a gallon of chlorine and my...

The repair

Between main drain and the valve near the pump...

I broke the pvc line thats between my pump and the drain. Do I have to drain my pool below the break in the pipe to stop the flow?

6:30 AM FC 26.5 CC 0

10:00 PM FC 27.5 CC 0 Tested twice just in case...

Day 12:

6pm FC 33 CC 0

Tested 3:30 FC 37 CC 0 Broke the seal on my second bottle of R-0871...

I'm fighting the fight...

FC 20 CC 0 Added 1.5 gallons

Noon FC 25 Added 1.5 Gallons So much for not using so much. Although, That should get me through the hottest part of the day...

Its a little cloudy after the brushing from today. It won't take much to keep the level up through tomorrow so thats the plan right now...

9:30 AM FC 24 10:30 Am Brushed Added Gallon 12 Noon FC 24 Added 1.5 Gallons

9:30 PM FC 28 (3 hours after last chlorine addition)

6:30 PM FC25 Added 1/2 Gallon

CYA 40

Jbizzle: your first paragraph is correct. I tested the oclt an hour after adding the chlorine last night. I will test cya and post results...

430 FC 33ppm

Jbizzle, Your in a different time zone than me. 1030pm last night FC 28.5 630am This morning FC 28 1030am FC20 added 1.5 Gallons 1200 noon FC40 did nothing 230pm FC 18.5 added gallon 330pm FC 23.5 added half gallon

Miami sun beating directly down on the pool for that time, not a cloud in sight. I will be doing an overnight test again just to be sure...

3:27 PM FC 22.5 Added 1/2 Gallon Black Algae (same location as earlier in the thread.)

Noon test FC 40 Did nothing 2:20PM FC 18.5 Added gallon chlorine

FC 20 Added 1.5 gallons chlorine Brushed entire pool