I really appreciate the forum and have searched to see if my question would be answered elsewhere and haven't found it.
I recently converted to the BBB. Just got my TF100. My understanding was that I needed to get my chlorine levels up before I stabilized. But it seems that I can get the chlorine level up but within a day it's back down to zero, (going from the top end of the test kit to not even registering). when I tested for CYA, I am either testing wrong, or it is testing correctly. But the water sample (after following instructions) never changed color or clarity. I could fill the tube and still easily see the black dot (looking from the top down).
So my question is, if I have no CYA at all, should I go ahead and add some and then try to bring stabilization to my chlorine? Or should I bring it up to shock levels, and then immediately add CYA.
Final question, am I correct that CYA is still something I would have to purchase from the pool store (stabilizer)? It is not one of the 3 B's?