If it were my pool with high cya and high calcium hardness, I'd do a partial drain to lower both those values. Of course, that may not be an option for you if you are on well water. At any rate, if you want to try and not drain, be sure to use only bleach to chlorinate with. You don't want your cya any higher and you definitely don't want your hardness reading any higher. No cal-hypo for you. You may still have a problem with cloudy water with CH of 500. That is kind of the end of the acceptable range. Some people have problems with clouding at 500, others don't seem to. Time will tell. Keep running your pump 24/7 right now while trying to clear it and if you don't do a partial drain, you're gonna have to run higher than normal chlorine levels to adequately sanitize your water. See the sticky at the top of this forum "Best Guess CYA chart."Originally Posted by JMCFAN
Keep us posted how things are going.
Watermom
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