I have a 1700 gallon pool and don't yet have a cya test for it. I've been swapping every other 2 days between using a small version (These are like half the size of a usual puck) trichlor tablets and plain old bleach. In each case I generaly loose between 1-2ppm a day, I was loosing more earlier but thats because I had a dirty bottem and was working out a way to vaccume this sucker with the crappy intex pump.
I dont have a cya test and I am afraid of it getting to high, but seeing as my ppm is allways in the 1-5 range then I don't think I have that much? The past several days I have been sticking one and only one tablet (half size of a puck) in the skimmer and when I test it the next morning, it is 1ppm, maybe less (very little color). Also TC and CC test don't change the color at all so I am assuming that means everything is good contamination wise.
If cya was getting high, would I be having a hard time getting FC to be low?