Testing for Cya

Algae problems in swimming pool water.
Green (cloudy) water or slimy pool walls.
Black algae. Mustard algae. Pink or white pool mold.
Jack Sparrow

Testing for Cya

Postby Jack Sparrow » Mon 30 Jul, 2007 11:46

I have some questions when it comes to testing for Cyanauric Acid. I'm supposed to see the dot disappear at the bottom of the tube but that never completely happens. It turns quite cloudy, but I can still see it.
Can someone shed some advice on this test.


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Postby Backglass » Mon 30 Jul, 2007 13:54

If the dot never disappears, then you don't have enough CYA. There should be markings on the side of the tube. If the tube is full and you can still see the dot, you have less than 10ppm CYA.

The reagent (melamine) brings the CYA out of suspension and makes the water cloudy. The cloudier the water, the more CYA. Thats why you do the dot thing. When it gets so cloudy you cant see the dot, you look on the side and read the CYA level.
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