I have a 15,500 gallon inground plaster pool. I recently purchased the taylor 2006 kit. Doing the tests, this is what i got.
FC 0 (the reason for the 0 chlorine is, we recently purchased the house and prev owners didn't seem to have added any chlorine during the 3 weeks period. Only trichlor jumbo tabs were used as i could tell from the floater and trichlor bucket that we left behind.)
Total Alk 180
CH (using the taylor 2006 kit, at 10ml, it took 22 drops). So 22x25 = 550
CYA (it's way below the 100 mark on the test tube) It's on the 1 1/2ml mark on back of the tube which i would say more like 300 cya. I can't tell exact measurement since tube is not labeled below the 100 mark.
I added half gallon (10% liquid chlorine) but i still can't read any chlorine on the kit. I'm guessing it's because of high CYA.
Water look clear. No signs of cloudiness or algea.
What do you suggest i do at this point. How come the water still looks good even though no chlorine in water and high CH. What do i adjust first at this point and how do i get free chlorine up to it's proper level 3-4ppm.