July 12, 2025

The Importance of Using Sodium Carbonate in Swimming Pools

The Importance of Using Sodium Carbonate in Swimming Pools

Swimming pool maintenance is more than just skimming debris and adjusting chlorine. One vital chemical often overlooked by homeowners is sodium carbonate, commonly referred to as soda ash. This compound plays a crucial role in maintaining water balance and overall pool health. At Anomaly Pool Services, Texas’s leading swimming pool cleaning and repair company, we emphasize the importance of properly using sodium carbonate to ensure safe, clean, and crystal-clear pool water.

In this article, we’ll explore how sodium carbonate works in pools, its benefits, and best practices for use, especially when it comes to pH balance and water clarity.

What Is Sodium Carbonate?

Sodium carbonate (Na₂CO₃), also known as soda ash, is a white, water-soluble powder used to raise the pH level in swimming pools. It's a naturally occurring substance, making it a natural pool cleaner in many respects. Soda ash for the pool is essential when the water becomes too acidic, which can cause corrosion to pool equipment and discomfort for swimmers.

Is Soda Ash Soluble in Water?

Yes, soda ash is highly soluble in water, which is one of the reasons it works so effectively in swimming pools. When added, it quickly dissolves and begins balancing your pool’s pH level. This makes it both fast-acting and efficient.

Why Is Sodium Carbonate Important for Pools?

Maintaining the right pH in a pool is crucial. Ideally, the pH level should be between 7.2 and 7.6. If it drops below this range, the water becomes acidic, which can:

  • Damage pool surfaces
  • Corrode metal equipment
  • Irritate swimmers’ eyes and skin
  • Reduce chlorine’s effectiveness

This is where sodium carbonate for pools becomes essential.

Soda Ash for Swimming Pools: Key Benefits

Here are some reasons why soda ash for swimming pools is a go-to solution:

Raises pH Quickly and Safely

If you’re wondering how much sodium carbonate to raise pH, it depends on your pool size and current pH levels. Typically, 6 oz. of soda ash in a 10,000-gallon pool raises the pH by 0.2 units.

Protects Pool Infrastructure

Acidic water can eat away at liners, grout, and metal parts. Soda ash acts as a protector by neutralizing acidity.

Enhances Chlorine Effectiveness

Chlorine works best within the correct pH range. With the use of soda ash in a pool, you ensure sanitizer efficiency.

Eco-Friendly and Natural Pool Cleaner

Unlike synthetic alternatives, soda ash is a natural pool cleaner that doesn’t introduce harsh chemicals.

How to Use Soda Ash in a Pool | Step-by-Step

At Anomaly Pool Services, we often guide homeowners through safe chemical balancing. Here's how to add soda ash to your swimming pool:

Test Your Pool Water

Before adding any chemicals, test the pH and total alkalinity using a reliable test kit or digital meter.

Calculate the Dosage

To determine how much sodium carbonate to raise pH, refer to dosage charts. For example:

  • 10,000-gallon pool
  • pH at 6.8
  • Goal: raise to 7.4
  • Required soda ash: approx. 12–16 oz

Pre-dissolve Soda Ash

Though it’s soluble in water, pre-dissolving soda ash in a bucket of warm water helps it mix more evenly and avoid cloudiness.

Distribute Evenly

Pour the solution slowly into the pool around the perimeter while the pump is running to ensure proper distribution.

Re-test After 4–6 Hours

Check the pH again and make adjustments as needed.

Soda Ash vs Other pH Increasers

While soda ash is often the preferred choice, it’s not the only option available. Here’s how it compares:

When in doubt, Anomaly Pool Services can test and recommend the best solution for your unique pool chemistry.

Common Mistakes to Avoid

While soda ash is easy to use, mistakes in application can lead to problems. Avoid these common issues:

  • Overdosing: Adding too much can raise pH too high, leading to scaling or cloudy water.
  • Adding without testing: Always test before adjusting chemicals.
  • Pouring into the skimmer: It can clog filters. Always broadcast around the pool.

Why Choose Anomaly Pool Services in TX?

When you need expert advice on soda ash for a pool or any other maintenance issue, Anomaly Pool Services is your go-to partner. Based in Texas, we offer:

We don’t just service pools, we protect your investment and deliver peace of mind. Whether you’re dealing with pH issues or need a full cleaning, Anomaly Pool Services is here to help.

FAQs about Sodium Carbonate and Pool pH

What is the difference between soda ash and baking soda in pools?

Soda ash (sodium carbonate) raises both pH and total alkalinity, while baking soda (sodium bicarbonate) is primarily used to raise alkalinity with only a slight pH increase. Use soda ash when pH is very low.

How much soda ash do I need for a 15,000-gallon pool?

To raise the pH from 6.8 to 7.4 in a 15,000-gallon pool, you'd typically need 18–24 oz of soda ash. Always test your water and adjust accordingly.

Can I add soda ash directly to the pool?

It’s best to pre-dissolve soda ash in a bucket of water before adding it to your pool. This ensures even distribution and prevents cloudiness or clumping.

Is soda ash safe for saltwater pools?

Yes, soda ash is safe and effective in saltwater pools, just like in chlorine pools. Proper pH balance is important regardless of sanitizer type.

How quickly does soda ash work?

Soda ash begins working immediately upon dissolving, and you should re-test the pool water 4 to 6 hours after application to measure results.

Conclusion: Maintain Balance with Soda Ash and Expert Support

Keeping your swimming pool water healthy involves more than routine cleaning, it requires precise chemical balancing. Sodium carbonate in swimming pools is a powerful tool for correcting pH imbalances, improving chlorine effectiveness, and preserving your pool’s infrastructure.

Whether you're curious about how much sodium carbonate to raise pH, or want advice on using soda ash for swimming pools, trust Anomaly Pool Services to guide you every step of the way. Our experienced team ensures that your pool remains a safe, enjoyable oasis all year round.

For professional pool cleaning, chemical balancing, and repairs in Texas, contact Anomaly Pool Services today, because your pool deserves expert care.

Copyright 2025. Anomaly Pool Services Company, LLC.