What Does Baking Soda Do for a Pool?

What Does Baking Soda Do for a Pool?

Swimming pools are a source of relaxation and enjoyment during hot summer days. Maintaining proper chemical balance is essential to keep your pool clean and safe for swimming. While several chemicals are used in pool maintenance, baking soda is a versatile and cost-effective option. In this article, we will explore what does baking soda do for a pool.

Maintaining a well-balanced pool requires careful attention to various factors, including pH, alkalinity, and chlorine levels. Baking soda, a household staple known for its numerous applications, can be valuable to your pool maintenance routine.

What is Baking Soda?

Baking soda, also known as sodium bicarbonate (NaHCO3), is a white, crystalline powder with many uses. It has been used for baking, cleaning, and even as a remedy for certain health conditions. Its alkaline properties make it an excellent candidate for maintaining the chemical balance in swimming pools.

The Role of Baking Soda in Pool Maintenance

Balancing pH Levels

One of the primary roles of baking soda in pool maintenance is to balance the pH levels. pH refers to the acidity or alkalinity of the water. Ideally, pool water should have a pH level between 7.4 and 7.6, slightly above neutral. When the pH level deviates from this range, it can cause discomfort to swimmers, damage pool equipment, and reduce the effectiveness of other pool chemicals. Baking soda acts as a pH buffer, helping to stabilize the water and prevent drastic pH changes.

Alkalinity Control

In addition to balancing pH, baking soda also plays a crucial role in controlling alkalinity levels. Alkalinity is a buffer against pH fluctuations, ensuring the water remains stable. Baking soda, being alkaline, can increase the pool water’s total alkalinity. Maintaining proper alkalinity levels provides a stable environment for other pool chemicals to work effectively.

Chlorine Stabilization

Chlorine is commonly used to disinfect pool water and eliminate harmful bacteria and contaminants. However, chlorine can be affected by sunlight and heat, causing it to dissipate quickly. Baking soda can help stabilize chlorine levels, extending its effectiveness and reducing the need for frequent reapplication. This is particularly beneficial in outdoor pools exposed to direct sunlight.

Cleaning Pool Surfaces

Over time, pool surfaces can accumulate dirt, grime, and stains. Baking soda can be a non-abrasive cleaning agent to tackle these issues. Its mild abrasive properties effectively remove stains and dirt without damaging the pool’s surface. Regularly cleaning pool surfaces with baking soda can maintain a clean and visually appealing swimming pool.

Preventing Algae Growth

Algae growth is a common problem in swimming pools, especially in warmer climates. Baking soda can help prevent algae growth by raising the pH level of the water, creating an environment where algae find it difficult to thrive. Additionally, it can act as an algaecide when combined with other pool chemicals, further inhibiting algae growth.

Reducing Stains and Odors

Baking soda has natural deodorizing properties that can help neutralize unpleasant odors in pool water. It can also aid in reducing the appearance of stains caused by metals like iron and copper. By adding baking soda to your pool maintenance routine, you can enjoy a fresh-smelling pool with minimal staining issues.

How to Use Baking Soda in Your PoolWhat Does Baking Soda Do for a Pool?

Using baking soda to maintain your pool is a straightforward process. Here are the steps to follow:

Step 1: Test the Water

Before adding any chemicals, it’s crucial to test the water’s pH and alkalinity levels using a pool testing kit. This will help you determine the current state of your pool water and the amount of baking soda required for adjustment.

Step 2: Determine the Required Amount of Baking Soda

Referencing the test results, calculate the amount of baking soda needed to balance the pH and adjust alkalinity. Various calculators and guides are available online to assist with this process.

Step 3: Add Baking Soda to the Pool

Slowly add baking soda to the pool with the calculated amount in hand. It’s recommended to dissolve the baking soda in a bucket of water before pouring it into the pool. This ensures even distribution and prevents clumping.

Step 4: Monitor and Adjust

After adding baking soda, allow the water to circulate for a few hours. Retest the pH and alkalinity levels and make any necessary adjustments. Remember to follow the manufacturer’s instructions and recommendations regarding the use of baking soda in your specific pool.

While baking soda is generally safe to use in pools, following safety guidelines is important. Avoid direct contact with eyes and skin, and always store baking soda in a cool, dry place away from children and pets. If you have any concerns or specific health conditions, consult a pool maintenance professional or a healthcare provider before using baking soda in your pool.

Common Myths about Baking Soda and Pools

There are several myths surrounding the use of baking soda in pools. Let’s debunk a few of them:

Myth: Baking soda can replace chlorine in pool maintenance.

Fact: Baking soda is not a substitute for chlorine. It serves a different purpose in pool maintenance and should be used with other chemicals, including chlorine.

Myth: Baking soda can cure green pool water.

Fact: While baking soda can help prevent algae growth, it is not a cure for already green or heavily contaminated pool water. It should be used as a preventive measure alongside appropriate algaecides and sanitizers.

Myth: Adding more baking soda will solve all pool water issues.

Fact: Adding excessive amounts of baking soda can disrupt the pool’s chemical balance and lead to further issues. It’s important to use baking soda in moderation and rely on accurate water testing for appropriate adjustments.

Myth: Baking soda is harmful to pool equipment.

Fact: Baking soda is generally safe for pool equipment. However, prolonged exposure to high concentrations may cause damage. Follow recommended dosage and usage guidelines to avoid any potential issues.

Myth: Baking soda can eliminate all pool odors.

Fact: Baking soda can help reduce odors in pool water, but it may not eliminate them. Persistent or strong odors could indicate underlying issues that require further investigation.


Baking soda is valuable in maintaining a clean and balanced swimming pool. Its ability to balance pH levels, control alkalinity, stabilize chlorine, clean pool surfaces, prevent algae growth, and reduce stains and odors make it a versatile and cost-effective option. Following proper usage guidelines and debunking common myths can enhance your pool maintenance routine and enjoy a refreshing swimming experience.

Maurice Andrews

Maurice Andrews

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