You want your CYA levels to be between 30-50 ppm for a salt water generated pool, you will be looking at 70-80 ppm. Anything above 50 ppm or 80 ppm for salt water pools, will take longer to kill the bacteria in the water.Similarly one may ask, what is a good CYA level in pool?
In a typical residential pool, the chlorine loss to sunlight even with CYA and low swimmer loads is about 1.5 ppm per day or about 10 ppm of chlorine per week. This means that if you started with a low CYA of only 30 ppm, in about three weeks you would be at 50 ppm. This is the maximum CYA that we recommend.
One may also ask, how do I lower CYA levels in my pool? Yes, the most economical way to lower CYA is to drain, or at least dilute the pool with fresh water. There are also some specialized filters that exist to capture CYA and remove it from water, such as reverse osmosis (RO).
One may also ask, is it safe to swim in a pool with high cyanuric acid?
It is safe to swim in if you keep chlorine levels higher than normal. The cyanuric acid is not harmful itself. A free chlorine level of about 8 would be right for that level of cyanuric acid, if I'm remembering correctly. Your CYA level won't go down through evaporation.
Do you need CYA in pool?
First, CYA (cyanuric acid) should only be used in outdoor pools where required, it should never be used indoors; it is actually illegal to use indoors in various states, and is outright banned altogether in others. The purpose of CYA is to prevent chlorine from being broken down by UV rays.
Does shock raise CYA?
Cal hypo is the most powerful type of pool shock, making it great for super-chlorination. This will help you quickly return to the water. Calcium hypochlorite does not contain any cyanuric acid (CYA), therefore it will not raise the CYA level in your pool.Does pool shock have cyanuric acid?
All pool shock is not created equal There are two main types of chlorine pool shock that are used in both the residential and commercial pool environment. Note that some have cyanuric acid and some do not. There is also a non-chlorine shock available.Can you over shock a pool?
Start off by adding 3 or 4 gallons, and if you see no results overnight, add 3 or 4 more gallons the next day. Continue this process until you notice the water changing color to either cloudy white, light green or clear. YOU CANNOT OVER SHOCK A POOL ! The more you add, the quicker it will clear !Does cyanuric acid raise pH?
The fraction that ionizes is pH-dependent. At ideal pH (7.4 to 7.6) and cyanuric acid levels (30 to 50 ppm), the cyanuric acid/cyanurate system will not significantly contribute to the buffering of pool water. However, as the cyanuric acid levels increase, they will have an effect on the total alkalinity test result.How do you fix high cyanuric acid in a pool?
If the CYA levels that are more than just a little high, diluting your pool water is the only way to lower them. Allow splashout to bring down your water level, then top off your pool with fresh water. If the levels are extremely high, you may need to drain your pool and refill it with fresh water.Does CYA reduce over time?
Yes, entirely possible. As you point out, there is a testing variance to consider and CYA will naturally degrade a few ppm per month, maybe a little more.Why is cyanuric acid high in my pool?
When cyanuric acid levels get too high, it can cause something referred to as chlorine lock, which basically means your chlorine has been rendered useless. You'll know it has happened when your chlorine test shows very or little chlorine even right after you've added it to the pool.How does cyanuric acid affect chlorine?
The amount of cyanuric acid in your pool greatly affects the disinfection, oxidation, and algae inhibition rates of the chlorine. Studies and research show that ORP levels drop with the introduction of more cyanuric acid (indicating that the chlorine is lowering in effectiveness).Does CYA dissipate?
Unlike chlorine, CYA does not dissipate, the only way to lower your stabilizer levels is to drain and refill a portion of your pool water.Does CYA evaporate?
When water evaporates, CYA stays behind and stays in the water for a long, long time. For the most part, CYA levels can remain very stable if you're not adding more of it to the water.Why is my pool stabilizer so high?
If the stabilizer level is too high in a pool it, will lock the chlorine molecules, rendering them ineffective as a sanitizer. This usually happens as a result of using chlorine tablets that contain cyanauric acid. This is because the chlorine molecules are locked up by the high cyanuaric acid level.Will cyanuric acid evaporate?
Cyanuric acid does not evaporate from a pool, and the only way to greatly lower a pool's concentration of CYA is to partly drain the pool and refill it with fresh water. For Donohoe, it comes down to how the pool is used.Is baking soda a pool stabilizer?
Baking Soda is used for raising the total alkalinity of the pool, which is the key to keeping the ph in balance. It's not a stabilizer.Can you shock your pool during the day?
What Is the Best Time of Day to Shock a Swimming Pool? Shock your pool late in the evening or at night, when the sun is down, to make sure free chlorine will stay in your water longer. Ultraviolet (UV) rays from direct sunlight greatly reduces free chlorine levels, so shocking during the day will not be very effective.Does stabilizer damage pool liner?
How to add stabilizer to your pool. Most manufacturers say to add your CYA to a bucket of warm water first and others say you can pour it directly into the pool. I recommend always dissolving it in a bucket of water since it is an acid that can cause skin irritation or pool liner damage.How much does it cost to drain a pool to lower CYA?
Anyway, your target CYA should be 30-50 with a standard pool, or 60-80 if your pool has a Salt Water Generator. When you drain your pool, you should try to keep 12 inches of water in teh entire pool.What is cyanuric acid in pool?
Cyanuric acid is known as a stabilizer for the chlorine in swimming pools exposed to sunlight. It helps reduce the chlorine loss by protecting the free chlorine in the pool from the sun's ultraviolet rays, reducing the amount of chlorine needed to maintain proper sanitizer levels. 
