Most important, cyanuric acid will not be consumed in this helpful work and will, over time, start to build up in pool water. Yes, that may sound low, but there are practical reasons why. Cyanuric acid is used in swimming pools to lower the rate of photochemical reduction of chlorine, hypochlorous acid, and hypochlorite ion. That’s crazy, right? However, there are some companies that recommend adding it directly to your pool. (Okay, I do and it makes it more fun.). Granted, more CYA can give your chlorine more protection from sunlight for longer, but at what cost? This is not due to cyanuric acid itself, but rather how it interacts with chlorine. Referring back to Richard Falk, one of the committee members for the CMAHC, you need at least 7.5% of your CYA level in Free Chlorine to keep up with algae growth. As long as the cyanuric acid concentration is less than 20 mg/l, there will not be any problem. It seems like stabilized chlorine use is the main reason for high levels of CYA. All you need to do is add fresh water to the pool (3 to 5% of the total volume). If your levels are too low and you need to bring your levels up above 30 ppm, it’s time to add some cyanuric acid to your pool. Most saltwater chlorine generator (SWCG) pools appear to remain algae-free at a lower minimum FC level compared with the ⦠How to Reduce Cyanuric Acid (CYA) in a Swimming Pool, High levels of Cyanuric Acid (CYA) in pool water can cause issues. If your CYA is too high, draining and diluting is the most cost effective means to reduce CYA in your pool. CYA, also known as âstabilizerâ or âconditionerâ in the pool industry, The relationship of chlorineâs âstaying powerâ and CYA, Figure 1 shows us that roughly 20-30 ppm of CYA is enough to give us 95-98% protection from sunlight, The CDCâs Model Aquatic Health Code (MAHC), The Committee that writes the Model Aquatic Health Code (CMAHC) released a 2016 update that indicates an, upper limit of CYA in pools with a fecal incident. See, over time, cyanuric acid can build up in pool water, since it doesn’t disappear on its own. It’s an incredibly useful pool treatment that comes in several forms: Sodium Dichlor = Stabilized Chlorine (colorless, solid granules). That upper CYA limit? It is recommended that all information from this or any other source is to be performed assuming individuals performing these functions will consult local state and federal requirements before you act upon it in any way. In that case, there are cyanuric acid reducer products on the market that will bring down the levels in your pool but only if they are 100 ppm or higher. This dilutes the cyanuric acid and brings the water back in balance, upping the chlorine’s purification power. With your CYA of 110 ppm, your SLAM level FC is 40 ppm. Even if you add the right amount of cyanuric acid, you need to test for it regularly. Test the Water. Less chlorine needed = more money in your pocket. It’s all the same stuff. Sometimes you may feel like an alchemist mixing potions in a pool-size cauldron. You can crack open a beer and relax by the pool. Just make sure to follow the manufacturer’s instructions regarding amounts. It seems like stabilized chlorine use is the main reason for high levels of CYA. You must also be able to see the bottom of the pool in the deep end of the pool. It’s one more chemical you’ll need to add to your pool and keep balanced, but with proper care and testing, will protect your chlorine, your wallet, and your sanity in the long run. It shields these cleaning molecules from ultraviolet destruction, extending the lifespan of the chlorine you just added. As water evaporates, CYA stays behind, just like calcium and salt. The purpose of this article is to inform people about CYA, its benefits and its drawbacks. Most complete pool test kits come with a test for cyanuric acid but you can also get separate tests or test strips to check your levels. The alternatives to draining your water are to 1) pay big money for filtration, or 2) try to manage the pool with high levels of CYA. And not just that, but the summer heat that warms your water can also be a breeding ground for bacteria, which also uses up chlorine more quickly. We hope this article helps. So unless you have little elves producing chlorine for you in your basement, you’re going to want to protect the chlorine that you add to your pool. You probably won’t have to add cyanuric acid to your pool after your first dose of the season unless you’ve had a giant pool party with lots of kids or a massive rainfall, either of which may have thrown off your pool’s chemical balance. If you have an outdoor pool, there’s no getting around it: you’re going to need cyanuric acid to protect your pool from chlorine loss. It’s actually a pretty weak acid, commonly sold as white crystalline powder when not pre-mixed with chlorine. Ideal Cyanuric Acid Levels and How to Adjust Them. It forms a weak and temporary bond with chlorine, which affects the chlorine more than the cyanuric acid itself. The industry has also observed a recommended cyanuric acid range of 10 to 100 ppm, a range that is viewed as necessary to adequately prevent ⦠You might see it called trichlor when it’s mixed with chlorine tablets or sticks and dichlor when it’s mixed with pool shock. If your levels are too high, on the other hand, it’s a bit more tricky to solve. One pound of trichlor in 10,000 gallons of water will add 6 ppm of CYA. Residue that affects swimmers or plumbing the CYA level is 20â50 ppm ; levels over 100 ppm, affects... Add cyanuric acid in your pool will then be available for sanitizing is it safe to swim in a pool with high cyanuric acid than... Cleaning molecules from ultraviolet destruction, extending the lifespan of chlorine, acid... And has hardly any effect on a pool Fountain will not be any problem amount of cyanuric acid help. 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