Chlorine not registering

Causes and cures for cloudy swimming pool water.
Milky pool water, white, pink, brown, purple, black cloudy water.
James Watson

Chlorine not registering

Postby James Watson » Tue 21 Sep, 2010 11:53

I think that most of your CC is gone. There is still too much overnight FC loss, which indicates that there are still organics that need to be oxidized.

Add 490 ounces of bleach today. After the sun goes down, measure the FC and CC and then measure them again in the morning. You will know when you can stop shocking when your overnight FC loss is only 1.0 ppm.

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