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Alkalinity/bad orange smudge buildup

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Mich14:
Thanks for the reply and the link. Read through the one link and while helpful, there’s a lot there and a bit overwhelming lol.

I took a water sample in yesterday (this is after two straight days of adding a half of cup of acid, so a total of 1 cup over two days) and they said the alkalinity was 220. Told them what I’d been doing to treat it, they recommended that I go home and put another full cup of acid in and test this morning. Just tested and doesn’t appear to have changed....yet again. Frustrating! So just called another local pool/spa place to continue looking for additional advice and they said to go ahead and put another cup in today but that ultimately if that doesn’t lower it to go ahead with the complete drain and refill plan like you suggested.

Keep in mind that for the last 4-5 days while I’ve been doing this acid treatment, I’ve not allowed anyone in the tub so it’s had zero use. Everyone seems dumbfounded as to why the TA and ph aren’t coming down.

Mich14:
Should also add that the dealer wasn’t suggesting that the ozone is a sanitizer. He definitely wanted me to continue to add chlorine at a 1/4 cup per week. I believe he was saying that bc of the ozone that often times the FC reading on the test strips will show low or zero and to not be too concerned with that reading.
He could be dead wrong, I’m just passing along what I’m being told.

A.O.:
We use our tub twice a day and add about 6 oz of 12 1/2% chlorine a day,3 oz after every use.

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