The Smart Chemical
Dosage Calculator
Stop guessing and start measuring. Enter your pool volume and test results below to find out exactly how much chemical to add.
How to Use This Calculator
Adding too much of a chemical can cause "yo-yo chemistry," forcing you to spend even more money correcting your mistake. Here is how to use this tool for a perfect dose every time:
- Enter Your Volume: You must know your pool's capacity. If you don't know it, use our Volume Calculator first.
- Select the Chemical: Choose the parameter you want to adjust (e.g., Raise Free Chlorine or Lower pH).
- Set Current & Target Levels: Input your current test strip reading and your desired target. The engine will instantly calculate the exact amount of product to pour in.
The Chemistry of Balancing Your Pool
Pool chemistry is a delicate interconnected web. When you adjust one chemical, it often affects another. Here is what you need to know before you start pouring:
pH and Alkalinity are Tied Together
Total Alkalinity acts as a "buffer" or a shield for your pH. If your alkalinity is too low, your pH will swing wildly. Always adjust your Alkalinity first (using Sodium Bicarbonate / Baking Soda). Once Alkalinity is balanced (80-120 ppm), your pH will naturally stabilize.
Chlorine Requires CYA (Stabilizer)
Liquid chlorine is highly vulnerable to the sun's UV rays. Without Cyanuric Acid (CYA), the sun will destroy 90% of your chlorine in just two hours. Ensure your CYA is between 30-50 ppm so your chlorine can survive the day and keep your pool safe.
Frequently Asked Questions
How much liquid chlorine do I need to raise my pool by 1 ppm?
As a general rule of thumb, it takes approximately 10.5 fluid ounces of standard 12.5% liquid chlorine (pool shock) to raise the Free Chlorine level of a 10,000-gallon pool by 1 ppm.
How do I lower the pH in my pool?
To lower your pool's pH, you must add an acid, typically Muriatic Acid (31.45%) or Dry Acid. It takes about 12 fluid ounces of Muriatic Acid to drop the pH of a 10,000-gallon pool by 0.2 points. Pro Tip: Always add acid slowly to the deepest part of the pool with the pump running.
Can I use regular baking soda to raise pool alkalinity?
Yes! Standard grocery store baking soda is exactly the same chemical (Sodium Bicarbonate) as the expensive "Alkalinity Increaser" sold at pool stores. You will need about 2.2 pounds of baking soda to raise the Total Alkalinity of a 10,000-gallon pool by 10 ppm.
Next Steps: Master Your Pool
Don't want to calculate adjustments one by one? Use our master analyzer to get a complete step-by-step treatment plan.