What Should My CYA Level Be?

Does baking soda raise cyanuric acid?

If your cyanuric acid levels are also low, it is best to add stabilizer.

This will both increase your total alkalinity and increase your cyanuric acid.

If your pH levels are low, it is best to add soda ash.

Baking soda is the best way to raise total alkalinity with minimal effect to pH and cyanuric acid..

Does cyanuric acid lower 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 low cyanuric acid?

The only practical way to lower cyanuric acid is by replacing some of your existing water with fresh water. To calculate how much water should be replaced, subtract the desired concentration of cyanuric acid from the current concentration and divide the difference by the current concentration.

How do I lower the cyanuric acid in my pool without draining it?

Dilute your pool water if the levels are above 80 ppm. The easiest way to lower the levels of cyanuric acid in your pool is to simply dilute the water. Partially drain your swimming pool by the same percentage by which you want to reduce your cyanuric levels.

Does CYA dissipate?

CYA is added to Chlorine to stabilize it and keep it from dissipating into gas within a matter of hours in the sun. Unfortunately, Chlorine does eventually evaporate or is used up in sanitizing your pool, leaving accumulating CYA in your pool as you replace the chlorine.

What happens if CYA is too high?

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.

Does pool shock have cyanuric acid?

Sodium Dichlor: Dichlor for short, is stabilized pool shock, with cyanuric acid as protection from the sun. 56% strength, with a nearly neutral pH level.

Does CYA affect pH?

It is well known that CYA reduces the amount of “active” hypochlorous acid (HOCl) in the water. But what is not well-known is that when the pH rises slightly in pools containing CYA, the amount of HOCl remains almost the same, and therefore, has nearly the same sanitizing efficacy and bacteria killing power.

Does CYA reduce over time?

RGS. ping said: CYA does reduce over time and a deep end discussion about it is in this thread, Degradation of Cyanuric Acid (CYA).

How much CYA do I add?

The actual amount you add to the pool will depend on the volume of water and amount of chlorine in your pool. For every 10,000 gallons, you’ll need about 4 pounds of CYA per every 30 ppm it needs to increase.

Is high cyanuric acid dangerous?

Although cyanuric acid offers a low level of toxicity without any serious health concerns, having high-levels of this chemical in a pool puts people at risk because of the chlorine’s diminished ability to kill bacteria and viruses.

How does cyanuric acid get too high?

It seems like stabilized chlorine use is the main reason for high levels of CYA. As water evaporates, CYA stays behind, just like calcium and salt. If you are using a stabilized chlorine like trichlor or dichlor, CYA accumulates…fast. One pound of trichlor in 10,000 gallons of water will add 6 ppm of CYA.

Why is my cyanuric acid low?

Pools with very low or no CYA will have significant chlorine demand. This is because unstabilized chlorine is destroyed by UV rays very quickly. This leaves your pool vulnerable to contaminants unless you continually add more chlorine. Instead of making chlorine upkeep your full-time job, add cyanuric acid instead.

Does shock raise CYA?

A close relative of calcium hypochlorite is sodium hypochlorite, commonly known as bleach. 2. Dichloroisocyanuric Acid: Also known as “dichlor,” this is another type of chlorine shock. Dichlor contains both chlorine and cyanuric acid and will, over time, raise your cyanuric acid levels.

What is ideal CYA level in pool?

Ideally you should keep CYA between 30-50, assuming you do not have a SWCG. If you do have a Salt Water Chlorine Generator, or your pool is exposed to lots of direct sunlight, you want to maintain a higher level. The recommended CYA level for SWCG pools is 70-80.