Pool owner adding soda ash to water to increase pH levels

How to Raise pH in a Pool Safely

Maintaining the right pH level in your pool keeps the water safe, comfortable, and equipment-friendly. A low pH level can lead to corrosion, cloudy water, and irritation for swimmers. Raising pH safely ensures your pool remains in top condition.

Step 1: Test the Water

Before adding any chemicals, you need an accurate reading.

  • Use a reliable pool testing kit or digital tester

  • pH should ideally be between 7.2 and 7.6

  • If your pH is below 7.2, it needs adjustment

Step 2: Choose the Right pH Increaser

The most common products to raise pH are:

  • Soda Ash (Sodium Carbonate): Raises pH quickly and effectively

  • Baking Soda (Sodium Bicarbonate): Mainly raises alkalinity but can help stabilize pH

Quick Tip

Soda ash is typically the best choice for fast pH adjustment, while baking soda works better for slow stabilization.

Step 3: Calculate the Correct Dosage

Adding too much chemical can cause pH to swing too high.

  1. Check the product label for dosage based on pool volume

  2. Add smaller amounts first and retest water after 1 to 2 hours

  3. Aim for a gradual increase to avoid overshooting the target

Step 4: Add the Chemical Safely

  • Turn on the pool pump to ensure circulation

  • Dissolve soda ash in a bucket of pool water before adding

  • Slowly pour the solution around the perimeter of the pool

Safety Reminder

Always wear gloves and avoid breathing in dust when handling pool chemicals.

Step 5: Retest and Adjust if Needed

  • Retest the water after 2 to 4 hours of circulation

  • Repeat the process if the pH is still below 7.2

  • Avoid making large adjustments all at once

Step 6: Maintain pH Balance

Once your pool is in the proper range, regular maintenance prevents future issues.

  • Test water at least twice a week during swimming season

  • Keep alkalinity between 80 and 120 ppm to support stable pH

  • Shock your pool as needed to prevent chemical imbalance

Why Proper pH Matters

Maintaining the correct pH has several benefits:

  • Protects pool surfaces and metal equipment from corrosion

  • Keeps water comfortable for swimmers, reducing eye and skin irritation

  • Improves the effectiveness of chlorine for sanitizing the pool

By following these steps, you can safely raise your pool’s pH and maintain a balanced, inviting swimming environment.

Back to blog

Leave a comment