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Zodiac UV Blockout Tablets - Stabiliser / Sunscreen for swimming pools. Blocks the sun from "eating" your chlorine.
Active Constituents:996g/kg Cyanuric Acid
Available in 1kg or 2 kg - easy to use tablets. Sits in the skimmer basket.
Dosage Rates:200g per 10,000L. This will raise the cyanurate level by 20ppm
Add 500g at a time directly to the skimmer basket with the pump running. Continue to run pump for a minimum of 8 hours and repeat dose until the required level is achieved.
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