If the 200 ppm is valid, you probably want to drain 3/4 (to 50 ppm) if you are going to use bleach next year. If you are going to use trichlor (which adds CYA) you may want to drain more.
Re: To drain or not to drain pool with high CYA?
If the 200 ppm is valid, you probably want to drain 3/4 (to 50 ppm) if you are going to use bleach next year. If you are going to use trichlor (which adds CYA) you may want to drain more.
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