To increase the pH level in your pool, you can add sodium carbonate (soda ash) or sodium bicarbonate (baking soda).
Understanding pH and its Importance
Maintaining the correct pH balance in your pool is crucial for swimmer comfort, sanitizer effectiveness, and equipment longevity. A low pH (acidic water) can cause corrosion of pool surfaces and equipment, while a high pH (alkaline water) can lead to scaling and cloudy water. The ideal pH range for a pool is typically between 7.2 and 7.8.
Methods to Increase Pool pH
Here's a breakdown of how to raise your pool's pH using two common chemicals:
1. Sodium Carbonate (Soda Ash)
- What it is: Sodium carbonate, also known as soda ash, is a chemical compound that is highly alkaline.
- How it works: Adding soda ash to your pool water directly increases the pH level.
- Pros: Raises pH more drastically than baking soda.
- Cons: Can cause a rapid pH increase, potentially leading to overcorrection.
- Usage: Carefully follow the manufacturer's instructions for dosage, adding small amounts and testing the water before adding more.
2. Sodium Bicarbonate (Baking Soda)
- What it is: Sodium bicarbonate, commonly known as baking soda, is a milder alkaline compound.
- How it works: Baking soda increases both pH and alkalinity, but its effect on pH is more subtle.
- Pros: Increases pH more gradually and is less harsh than soda ash.
- Cons: May require larger quantities to achieve the desired pH increase.
- Usage: Add baking soda to your pool water according to the manufacturer's instructions, test the water, and repeat if necessary.
Choosing Between Soda Ash and Baking Soda
| Feature | Soda Ash (Sodium Carbonate) | Baking Soda (Sodium Bicarbonate) |
|---|---|---|
| pH Increase | Drastic | Subtle |
| Alkalinity Impact | Minimal | Increases Alkalinity |
| Harshness | More Harsh | Less Harsh |
- When to use Soda Ash: If your pH is significantly low and you need a quick adjustment.
- When to use Baking Soda: If your pH is only slightly low, or if you also need to increase the total alkalinity of your pool water.
Important Considerations
- Testing is Key: Always test your pool water's pH and alkalinity before adding any chemicals. Use a reliable testing kit or take a water sample to your local pool supply store for professional testing.
- Follow Instructions: Carefully read and follow the manufacturer's instructions on the chemical packaging for proper dosage and application.
- Add Gradually: Add chemicals in small increments, allowing time for the chemicals to circulate and the water to stabilize before retesting and adding more.
- Safety First: Wear appropriate safety gear, such as gloves and eye protection, when handling pool chemicals.
