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Initially, you can't. What you do to lower alkalinity is first lower the pH to under 7.2, but not lower than 6.9. Then you aerate the pool, by creating bubbles with your brush, or by running a water feature, if you have one. This will lower your alkalinity. Maintain this lower pH and aerating until you get your alkalinity where you want it. Then retest your pH. If it is now too low, you add Mule Team Borax, say a 1/4 a cup, and then retest. The borax will raise your pH without raising your alkalinity. See the poolforum.com for more help if needed.

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13y ago
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7mo ago

To lower alkalinity without affecting pH levels in a swimming pool, you can use muriatic acid or sulfuric acid. These chemicals will reduce alkalinity without impacting the pH significantly. Be sure to follow the manufacturer's instructions and test the water regularly to maintain proper balance.

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Q: How do you lower alkalinity but not change pH in a swimming pool?
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What is the chemical ALK in a swimming pool?

ALK stands for Alkalinity in a swimming pool. It measures the pool's ability to resist changes in pH, which is important for maintaining proper water balance and preventing fluctuations in acidity. Proper alkalinity levels help to ensure that pool water stays clear and comfortable for swimmers.


What will result if sodium bicarbonate is used to lower ph in a swimming pool?

Using sodium bicarbonate to lower pH in a swimming pool is not effective. Sodium bicarbonate, or baking soda, is typically used to raise pH levels in pools. To lower pH in a pool, an acid such as muriatic acid or sodium bisulfate should be used.


Does shocking pool increase alkalinity?

Shocking a pool with products like chlorine can actually lower the pH and alkalinity levels of the pool water temporarily. It is recommended to test the water and adjust the alkalinity levels if necessary after shocking the pool to maintain proper water balance.


Can you use sodium bisulfate to lower TA?

Yes, sodium bisulfate can be used to lower total alkalinity (TA) in swimming pool water. It reacts with the alkaline substances in the water, reducing the TA levels. It is important to follow manufacturer's instructions and dosing recommendations when using sodium bisulfate.


How do you test alkalinity in a pool?

To test alkalinity in a pool, you can use a pool water test kit or test strips specifically designed for measuring alkalinity. Follow the instructions on the kit or strips to collect a water sample and add the appropriate reagents. Compare the color change to the provided chart to determine the alkalinity level.

Related questions

How could HCI be used in a swimming pool?

To adjust pH and/or lower alkalinity.


If you have a good alkalinity with mains water what would lower it in a swimming pool with out the addition of chemicals.?

Add rain water this has very low alkalinity


How do you lower the alkilinity of a swimming pool?

You have to know what you are doing. The addition of muriatic acid lowers the pH and total alkalinity in swimming pools.


Is alkalinity dangerous for humans in swimming pools?

Alkalinity is not an actual "chemical", however if you are concerned about increasing the alkalinity in your swimming pool, you are perfectly safe. The chemical that increases "total alkalinity" in a swimming pool, is only baking soda. It wil not harm the human body!


Why add hydrochloric acid to swimming pool?

Reduces alkalinity of swimming pool water (softens hard water)


What is the chemical ALK in a swimming pool?

ALK stands for Alkalinity in a swimming pool. It measures the pool's ability to resist changes in pH, which is important for maintaining proper water balance and preventing fluctuations in acidity. Proper alkalinity levels help to ensure that pool water stays clear and comfortable for swimmers.


What will result if sodium bicarbonate is used to lower ph in a swimming pool?

Using sodium bicarbonate to lower pH in a swimming pool is not effective. Sodium bicarbonate, or baking soda, is typically used to raise pH levels in pools. To lower pH in a pool, an acid such as muriatic acid or sodium bisulfate should be used.


Will adding a flocculant to the pool water lower the Total Alkalinity?

No


What household item can be used to lower pool Alkalinity?

baking soda


What causes Bumps jthat are forming on swimming pool surface?

pH and total alkalinity out of balance.


Does shocking pool increase alkalinity?

Shocking a pool with products like chlorine can actually lower the pH and alkalinity levels of the pool water temporarily. It is recommended to test the water and adjust the alkalinity levels if necessary after shocking the pool to maintain proper water balance.


What does raising the alkalinity and pH do for a pool?

Alkalinity readings for your pool is quite essential. When you increase your alkalinity, that makes it so your pH is more resistant to change due to weather, leaves etc