I just got my TF100 test kit today. I did all the tests. Here are the numbers.
FC – 4 ppm
CC – 0.5 ppm
pH – 7.8
TA - 70
CH - 470
CYA – 80
Water is crystal clear. I have been using tablets since I bought the house last year. I am switching to BBB. Please help me with the following questions.
1. CC: Should I shock the pool? The water looks great to me though I do see some brown dust like stuff. I think that might be algae.
2. CH: The number by Leslie’s from last month is 250. Now my number is very high. I repeated the test and got more or less the same number (500 v.s. 470). Is it something I should be worried about? Why is the number from Leslie’s so different from mine? I live in an area where water is hard, and many people have water softener.
3. pH: I have been using tablets. I thought pH should be low. Pool has a waterfall. Could that be the reason? I have turned off the waterfall for a week now, but pH still stays the same. Should I do anything to it if I want to use bleach from now on? I heard bleach will bring up the pH.
4. CYA: Leslie’s number from last month is 50. Seeing the black dot is quite subjective. I did the test twice. I think this is what I got. Should I lower it by draining some water from the pool?
Please let me know what actions I should take. Thanks for your help.