Your cya is a little high (we recommend 30-50 ppm cya), but I wouldn't do a partial drain/refill to correct unless you are having trouble right now. How does you water look?
About a week ago the CYA was 100 according to the test results from the pool store.
The water is clear with a turquoise/light blue tint (like the light blue on the bottom of this web page). Honestly, i dont know anymore...ive looked at that pool so many times lately that i dont even know. The water a month ago was a more clear blueish color.
Does the cya need to come down in order to return to its original color?
The water is clear... if i get a sample from a cup its completely clear. maybe the tint is from the plaster? I can't really tell the color of the plaster
About a week ago the water was clear with a greenish tint so I added a bunch of chlorine and so far everyday it has been getting more and more "blueish."
Post another picture of your pool water that we can compare to the previously posted ones. In fact it may be worth it to you to snap occasional pictures you can go back and review.
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