How do I lower high pH and alkalinity levels?

How Do You Bring pH and Alkalinity Down?

Use a pH Decreaser

To reduce high pH levels, a pH decreaser, typically composed of sodium bisulfate or muriatic acid, is used. These chemicals effectively lower the pH by increasing the acidity of the water. The method of application is crucial for safety and effectiveness – always follow the manufacturer’s instructions. For liquid products like muriatic acid, it’s often recommended to dilute it with water before adding it to the pool.

How to Reduce Alkalinity in Your Pool

The same chemicals, sodium bisulfate or muriatic acid, are effective in lowering alkalinity. However, the application method differs from simply lowering pH. To lower alkalinity, the chemical should be poured into the pool in one spot, rather than being dispersed. This creates a ‘column effect’ which allows the chemical to lower alkalinity more effectively without drastically affecting the pH.

What to Do After Application

After adding these chemicals, it’s important to allow the pool water to circulate thoroughly. This ensures even distribution of the chemicals throughout the pool. Once the water has circulated for a few hours, retest the pH and alkalinity levels. Additional adjustments may be necessary to achieve the desired balance.