How much bleach weekly/monthly?

[gagan]

Latest number from the Taylor kit:
FC - 3
CC - 0.5
PH - 7.6 / 7.5
TA - 70
CYA - < 40 (35ish)

I assume CYA is LOW. Not sure if I am testing correctly as the dot get very blurry but is definitely still visible under very close inspection until around 35. I thought it was closer to 50 at last test. Will around ~2 inchs of rain + ~2 inch of tap water over the last 2 weeks cause the CYA to drop as much? Any other potential reason for CYA loss? Pool store (Leslie's) had it at 60 on the same day(2 weeks ago)!

I'm scared to add additional stabilizer in case I am doing this test incorrectly.

It depends on a lot of things. Your CYA level, the temperature, the amount of organic stuff in the pool, the swimmer load, etc. The amount of bleach you are using doesn't seem excessive to me especially for a 30K gallon pool. Losing 2-3ppm per day isn't bad.

Do you have a Taylor K2006 test kit? Post some current testing numbers. It may be that your numbers, especially your CYA level, may need tweaking.

[Watermom]

Adding water will dilute the CYA reading some but its hard to know how much. And, you're right, it is definitely the hardest test to read. Watch the testing demo videos at this link:> http://pool9.net/K2006-vid/

If you do think your CYA is at 35ish, you'll probably do better if you raise it just a little. Maybe add another 2 to 2-1/2 lbs. That should add another 10ppm.