Maintaining the correct pH balance in your pool is essential for both water quality and swimmer comfort. pH measures how acidic or basic the water is on a scale from 0 to 14, with 7 being neutral. For pool water, the ideal pH range is between 7.2 and 7.6. Here’s why pH balance matters and how you can keep it in check.
Why pH Balance Matters
- Swimmer Comfort
When the pH level is too high (above 7.6), the water can cause eye and skin irritation. A pH level that’s too low (below 7.2) can also irritate the skin and eyes due to acidity. Keeping the pH in the right range makes swimming more comfortable and enjoyable. - Chlorine Efficiency
Chlorine is most effective at killing bacteria and algae when the pH is balanced. If the pH is too high, chlorine becomes less effective, which means you’ll need to use more to keep the pool sanitized. Maintaining the proper pH ensures your chlorine works efficiently, saving you time and money on chemicals. - Protecting Pool Equipment
Unbalanced pH levels can cause damage to your pool’s surfaces and equipment. Acidic water (low pH) can corrode metal parts, like ladders and pumps, and erode pool surfaces. High pH, on the other hand, can cause scale buildup on pool walls, pipes, and filters, which can lead to clogs and reduced water flow.
How to Maintain Pool pH Balance
- Test the Water Regularly
Check your pool’s pH levels at least once a week, and more often during heavy usage or extreme weather. Use a pool test kit or test strips to get an accurate reading. - Use pH Increasers and Decreasers
If the pH is below 7.2, you can raise it by adding a pH increaser, usually sodium carbonate (soda ash). If the pH is above 7.6, lower it by adding a pH decreaser, like sodium bisulfate or muriatic acid. Always follow the manufacturer’s instructions for safe and accurate dosing. - Monitor Total Alkalinity
Alkalinity acts as a buffer for pH, helping to prevent sudden changes. Keep your pool’s total alkalinity between 80 and 120 parts per million (ppm). If alkalinity is too low, the pH may fluctuate wildly. You can raise alkalinity by adding baking soda (sodium bicarbonate) if needed. - Avoid Overuse of Chemicals
Using too many chemicals at once can throw off your pool’s pH. Add chemicals one at a time, allowing them to circulate before testing again. This approach prevents accidental imbalances and helps you use chemicals more effectively.
This post was written by a professional at Clear Tech Pools. Clear Tech Pools has expert Sarasota pool builders. Our company was founded by local residents on the principles of hard work, exceptional customer service and a focused attitude. It is these qualities, along with our outstanding performance that keeps our customers satisfied. We have built, renovated and serviced thousands of pools in the area, and we have a long list of references available for all of our services upon request. Our staff of professional technicians have extensive training for fast and efficient service. We maintain our excellent reputation for quality by maintaining friendly relationships with our customers.


