1. What is Calcium Hardness Increaser?

Calcium hardness increaser is a chemical product used to raise the calcium hardness level in swimming pool water. Proper calcium hardness helps prevent plaster damage, equipment corrosion, and water balance issues.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( I \) — Calcium hardness increaser needed (lbs)
• \( T \) — Target calcium hardness level (ppm)
• \( C \) — Current calcium hardness level (ppm)
• \( V \) — Pool volume (gallons)

Explanation: The formula calculates the amount of calcium chloride or calcium hardness increaser product needed to raise the calcium hardness to the desired level.

3. Importance of Calcium Hardness

Details: Maintaining proper calcium hardness (200-400 ppm) is crucial for pool water balance. Low calcium can cause plaster etching and equipment corrosion, while high calcium can lead to scaling and cloudy water.

4. Using the Calculator

Tips: Enter target calcium hardness in ppm, current calcium hardness in ppm, and pool volume in gallons. All values must be positive numbers with target greater than current.

5. Frequently Asked Questions (FAQ)

Q1: What is the ideal calcium hardness range?
A: The ideal range is 200-400 ppm for most pools. Plaster pools typically require 200-275 ppm, while vinyl pools can tolerate up to 400 ppm.

Q2: How often should I test calcium hardness?
A: Test calcium hardness monthly during swimming season, and whenever you notice scaling or etching issues.

Q3: Can I add too much calcium hardness increaser?
A: Yes, excessive calcium can cause scaling on pool surfaces and equipment. Always calculate the proper amount needed.

Q4: What products are used to increase calcium hardness?
A: Calcium chloride is the most common product used to increase calcium hardness in pool water.

Q5: How should I add calcium hardness increaser?
A: Pre-dissolve in a bucket of water and distribute evenly around the pool while the pump is running. Brush the pool to help dissolve and distribute.