1. What is Pool Borate?

Borates are compounds containing boron that are added to swimming pools to help stabilize pH, reduce chlorine demand, and inhibit algae growth. The most common form used is borax (sodium tetraborate decahydrate).

2. How Does the Calculator Work?

The calculator uses the borate dose formula:

Where:

• \( V \) — Pool volume in gallons
• \( \text{Borate\_target} \) — Desired borate level (typically 30-50 ppm)
• \( \text{Borate\_current} \) — Current measured borate level

Explanation: The formula calculates how much borax (in pounds) is needed to raise the borate concentration in your pool to the desired level.

3. Benefits of Borate in Pools

Details: Borates in pools help stabilize pH, reduce chlorine demand, inhibit algae growth, make water feel softer, and enhance water clarity. The ideal range is typically 30-50 ppm.

4. Using the Calculator

Tips: Enter your pool volume in gallons, current borate level (0 if you've never added borates), and your target borate level (30-50 ppm recommended). The calculator will tell you how much borax to add.

5. Frequently Asked Questions (FAQ)

Q1: How often should I add borates to my pool?
A: Borates don't evaporate or degrade, so they only need replenishing when water is replaced or diluted by rain/backwashing.

Q2: Is borax the same as boric acid?
A: No, borax (sodium tetraborate) and boric acid are different compounds with different dosing requirements.

Q3: Are borates safe for all pool types?
A: Generally yes, but check manufacturer recommendations for vinyl liners or specialty surfaces.

Q4: How do I test for borate levels?
A: Use a borate test strip or test kit specifically designed for pool water testing.

Q5: Can I add too much borate?
A: Yes, levels above 50 ppm may cause eye irritation and aren't recommended.