no chlorine/no cyanuric acid

Chlorinating, maintaining the right chlorine levels,
chlorine problems. Dichlor, trichlor, cal hypo, bleach,
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no chlorine/no cyanuric acid

Postby poolmom » Fri 02 Jun, 2006 19:01

Regarding inground pool, 20,000 gallons - chlorine would not register last year - emptied and refilled pool last summer with good results. At closing in September cyanuric acid level was normal. Took cover off two weeks ago and cyanuric acid was at zero and pool will not hold chlorine again. Have tried shock treatments. Any suggestions?

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