Maintaining proper water chemistry is essential for a safe, clean, and enjoyable swimming experience in your backyard pool. One of the most critical aspects of pool water balance is pH, which measures the acidity or alkalinity of the water. When pH levels are too low, the water becomes acidic, leading to corrosion of pool equipment and irritation to swimmers’ skin and eyes. That’s where pH Plus comes in – a powerful tool for raising pool water pH and keeping it within the ideal range.

Let’s explore how to use pH Plus for pools, discuss the top pH increaser brands, and answer some frequently asked questions to help you master pool water balance.

How to Use pH Plus for Pools

What is pH Plus for Pools?

pH plus, also known as pH increaser or pH up, is a pool chemical used to raise the pH level of swimming pool water. It typically contains sodium carbonate (soda ash) or sodium bicarbonate (baking soda) as the active ingredient, effectively neutralizing acidity and increasing alkalinity.

The ideal pH range for pool water is between 7.2 and 7.8, with 7.4 being optimal. When pH levels drop below this range, it’s time to add pH plus to bring the water back into balance.

How to Use pH Plus in Your Pool

Using pH Plus is relatively simple, but following the proper steps and safety precautions is essential. Here’s a step-by-step guide:

  1. Test your pool water pH using a reliable test kit or test strips.
  2. If the pH level is below 7.2, calculate the amount of pH plus needed based on your pool’s volume and the product’s instructions.
  3. Turn on your pool pump to ensure proper circulation.
  4. Broadcast the pH plus evenly across the pool’s surface, avoiding any areas with poor circulation or dead spots.
  5. Allow the pool pump to run for at least 2-4 hours to distribute the pH plus thoroughly.
  6. Retest the water after 24 hours and repeat the process if necessary until the pH level is within the ideal range.

Remember to always wear protective gloves and eyewear when handling pool chemicals, and store them in a cool, dry place out of reach of children and pets.

Top pH Plus Brands for Pools

Top pH Plus Brands for Pools

When shopping for pH plus, you’ll find numerous brands and products. Some of the top pH plus brands for pools include:

  1. Arm & Hammer Baking Soda: A versatile and affordable option, baking soda is an effective pH increaser that’s gentle on pool surfaces and equipment.
  2. Clorox Pool&Spa pH Up: This granular pH increaser is fast-acting and easy to use, making it a popular choice among pool owners.
  3. In The Swim pH Increaser: Formulated with premium soda ash, this pH plus product is highly effective and dissolves quickly for fast results.
  4. Rx Clear pH Up: This concentrated liquid pH increaser is easy to measure and pour and compatible with all pool types, including saltwater pools.
  5. Leslie’s Pool Soda Ash: Made with high-quality sodium carbonate, Leslie’s Pool Soda Ash is a reliable choice for raising pool water pH and alkalinity.

When selecting a pH plus product, consider factors such as the size of your pool, the severity of the pH imbalance, and the product’s ease of use and compatibility with your pool type.

Frequently Asked Questions

How often should I test my pool water pH?

It’s recommended to test your pool water pH at least once a week, or more frequently during heavy pool usage or adverse weather conditions. Regular testing helps you identify and address pH imbalances promptly, preventing potential issues like equipment corrosion or swimmer discomfort.

Can I use household baking soda to raise my pool water pH?

You can use household baking soda (sodium bicarbonate) to raise your pool water pH. However, using pure baking soda without any additives or fragrances is essential, as these can affect water quality and clarity. Also, remember that baking soda has a lower pH than soda ash, so you may need to use more product to achieve the desired pH level.

What happens if I add too much pH plus to my pool?

Suppose you accidentally add too much pH plus to your pool. In that case, the water can become overly alkaline, leading to cloudy water, reduced chlorine effectiveness, and potential scaling on pool surfaces and equipment. You can use a pH decreaser (muriatic acid or sodium bisulfate) to lower pH levels according to the product’s instructions.

How does pH Plus for pools affect other pool chemicals?

pH plus can influence the effectiveness of other pool chemicals, particularly chlorine. When pool water pH is too low, chlorine becomes more active and dissipates quickly, reducing its sanitizing power. Maintaining proper pH levels with pH plus optimizes chlorine performance and ensures a safe, clean swimming environment.

Can I swim immediately after adding pH plus to my pool?

It’s best to wait 2-4 hours after adding pH plus to your pool before swimming. This allows the product to disperse evenly and the pH level to stabilize. Always retest the water before swimming to ensure the pH is within the ideal range and the water is safe for swimmers.


Using pH plus is a critical aspect of pool water chemistry that ensures a safe, clean, and enjoyable swimming experience. By understanding how to use pH plus, selecting the best products for your pool, and following a regular testing and maintenance schedule, you can keep your pool water balanced and crystal clear all season long.

Remember always to prioritize safety when handling pool chemicals. Don’t hesitate to consult a professional pool service if you have any concerns or questions about your pool water chemistry. With the right knowledge and tools, you can confidently master pH plus and enjoy a perfect summer pool.