I just finished upgrading the plumbing, pump and filter on my Intex 18' metal frame. My first tests were with the TF-100. No chemicals have been added, yet.
Cl - 0
pH - 7.5 or 8.5 (Don't remember exactly what's on the tube, right now, and couldn't make out the color between the two)
Alk - 120
CYA - Didn't test for this because I'm sure I don't have any.
My filter pressure started out at 8 and went to 11 in about 30 minutes. Is this because my water is that dirty or because of the couple of small leaks in the plumbing that I have to fix? Should I start adding bleach and cya now. I didn't add, yet, because I don't want to keep the filter on with the pressure rising that fast.