We are currently five weeks into our new pool, and I recently came across this site while researching ways to do our own water testing. I ordered the TF-100 test kit last week and performed my first water test yesterday. Results are:
CYA: 0 - never saw black dot go away
Water temp: 90
I have been using E-Z Clor big tabs, Super Shock-It, and Poolife Alkalinity Plus (from local pool store).
Just started reading pool school...but wanted to get a jump start on interpreting these test results.
Also, the water is currently clear.
Thanks for the help.