I just uncovered my 24' round vinyl pool yesterday. Tested the water and the ph was so low it didn't register. Also the CY was 100 ppm. I was told to put arm & hammer in it to raise the ph. I put in 26 lbs and it did nothing. I drained 1/2 of the water to try and lower the CY. Filled it and ran the filter. Today the PH still did not register. Added more A&H. finally got it to register slightly lower than normal. Measured the TA...............300. The pool water looks great I should mention, over the winter I had a floater in it under the cover with 5 tablets in it. Ive been told that was wrong. I can hear you folks out there, "what an idiot". Also, chlorine measures 0. Now that all the laughing has died down, how can i straighten this out. Thanks, Dave