I received the Blue Wave 3" tablets with my pool and want to use them up. I have the test strips which I know aren't very reliable and I also have the 3 way test kit from Walmart. I have a 30' above ground pool and the water looks great. I check the Chlorine & PH daily with the 3 way kit and they are fine. Last week, my PH levels were high & the FC didn't register on the test strips, I put in 3 jugs of 6% bleach as instruction from another post and went to Walmart and got the 3-way tester and the next morning Chlorine & PH were fine according to the test kit. Yesterday I test both with the strips & kit and my Chlorine was 0, so I added 2 of the 3" tablets to the skimmer and about 4 hours later the chlorine was up to 3. The only way I have to test the CYA is the test strips and it show 30-50. Everything looks fine, just wanting some feedback on if I'm heading for trouble. I did go out and buy some bleach, baking soda & borax, but wanted to use up the stuff I got also.