When it comes to pool and spa water balance, pH often gets all the attention. But behind every stable pH lies a hidden hero — total alkalinity (TA). Acting as a buffer, total alkalinity keeps your pH steady and your water healthy. Here’s why it matters and how to keep it under control.

🧪 What is total alkalinity?

Total alkalinity measures the water’s ability to resist changes in pH. It represents the concentration of alkaline substances (mainly bicarbonates, carbonates, and hydroxides) that neutralize acids in the water.

• Ideal range: 80 to 120 ppm (parts per million)
• Below 80 ppm → pH becomes unstable, likely to drop suddenly.
• Above 120 ppm → pH becomes too resistant, hard to adjust.

In short, total alkalinity acts as a shock absorber for your pH — it keeps it from bouncing up and down.

⚖️ Why total alkalinity matters

1. Stabilizes pH
   TA prevents abrupt swings in pH that can lead to irritation, corrosion, or cloudy water.
2. Protects equipment
   When alkalinity is too low, water becomes aggressive — it can damage pool liners, heaters, and metal components.
3. Improves comfort and water clarity
   Balanced alkalinity contributes to smoother, clearer, and more comfortable water for swimmers.

🧴 How to adjust total alkalinity

• If TA is too low (< 80 ppm): add an alkalinity increaser (sodium bicarbonate).
• If TA is too high (> 120 ppm): partially drain and refill with fresh water or use pH reducer (acid) gradually.

Always adjust alkalinity first, then pH — otherwise, changes in pH may not hold.

📲 How iopool helps you keep it balanced

With the EcO connected water analyzer, there’s no need to guess:

• It monitors your water’s condition in real time.
• The iopool app tells you when to adjust alkalinity and how much product to use.
• No manual testing, no confusion — just reliable, data-driven recommendations.

✅ Conclusion

Total alkalinity is the guardian of your pH — the silent protector that ensures your water remains clear, comfortable, and safe.
By keeping it in check, you maintain the foundation of perfect water balance. With EcO and the iopool app, managing alkalinity is as easy as checking your phone.