How to Add Cyanuric Acid to a Pool
Cyanuric acid is a stabilizer used to control chlorine levels in pools that are outdoors in direct sunlight. Chlorine will dissipate quickly when the sun is shining brightly on the water. The cyanuric acid slows down the dissipation of the chlorine without interfering with the disinfection and oxidation activity in the water. Adding cyanuric acid to the pool water must be done correctly so that the total amount of free chlorine is stabilized without adding too much cyanuric acid. Does this Spark an idea?
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Instructions
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Test the cyanuric acid in the pool using the test strip. Stick the strip in the water and compare it to the color chart that comes with the kit. The desired range is between 30 and 80 parts per million (ppm), but ideally, a reading of 40 ppm will prevent the chlorine from dissipating under the hot sun. If the reading is less than 40 ppm, you will need to add the correct amount of cyanuric acid.
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Mix the correct amount of cyanuric acid, or CYA, in a bucket of warm water. For a pool with 15,000 gallons of water that needs the CYA raised 10 ppm, add 1 1/4 lbs. of cyanuric acid to the bucket of water. If you need to raise the CYA by 20 ppm, add 2 1/2 lbs. of cyanuric acid to the bucket of water. If the pool needs to be raised 30 to 40 ppm, use 2 lbs. of cyanuric acid and to raise the CYA level 50 ppm, use 6 1/4 lbs. of cyanuric acid.
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Dissolve the cyanuric acid in the warm water. When the product is dissolved, take the bucket to the beginning of the deep end of the pool.
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Turn on the pool pump to filter. Slowly walk around the deep end of the pool while pouring the cyanuric acid solution in the pool water.
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