I just received my new TF-100 test kit and did the testing this morning. Here are the results:
I plugged these numbers into the pool calculator and was told to make the following adjustments:
--add 57oz of washing soda OR 109oz of borax to adjust the PH
--replace 73% of water with new water to adjust the CYA (a different amount of water replacement was suggested to adjust the TA--like 35%)??
We "rebuilt" an old pool 2 years ago so all the water was replaced at that time. We have had a pool for 20 years and ALWAYS used dichlor. I don't know why we are having this problem now after all that time of using dichlor without issues. I have been using pretty much only liquid chlorine bleach for the past month or so with occasional pucks.(I was trying to increase the CYA level per my test strips!!)
I had been testing multiple times per day since we opened the pool over a month ago, trying to figure out the problem with cloudy water, dead algae and no FC. I was using the Aquacheck test strips and I have been getting a TC of no more than 3 and a FC reading of 0-0.5ppm FC even the day after shocking the pool with up to 6 gallons of 10% bleach. Maybe the strips were old but they shouldn't be--can't decipher the date on them. Anyway, I won't be using those anymore. But I can't believe that the CYA readings on the test strips AND at the pool store were SO far off--pool store gave me a reading of 70ppm two different times.
My question is how to get out of this mess. I'm having a confidence problem with trusting the TF-100 CYA results when everything else was telling me it was much lower.Please list the steps going forward--I'm guessing we need to drain about halfway down and then test again and adjust the chemicals. I HATE draining the pool. We live in Wisconsin and it was just getting warm!
Please help--I need the experts to weigh in and rebuild my confidence in managing my pool!