1. What is Gallons Per Inch Calculation?

The gallons per inch calculation determines how many gallons of water are needed to raise the water level in a rectangular pool by one inch. This is useful for chemical dosing, water replacement, and understanding pool capacity.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( L \) — Pool length in feet
• \( W \) — Pool width in feet
• \( \frac{1}{12} \) — Converts 1 inch to feet (1/12 of a foot)
• \( 7.48 \) — Conversion factor from cubic feet to gallons

Explanation: The formula calculates the volume of a 1-inch deep rectangular section of the pool, then converts from cubic feet to gallons.

3. Importance of Pool Volume Calculation

Details: Knowing gallons per inch helps with accurate chemical dosing, water replacement calculations, and understanding how much water is needed to maintain proper levels.

4. Using the Calculator

Tips: Enter pool length and width in feet. Both values must be positive numbers. The result shows how many gallons are needed to raise the water level by 1 inch.

5. Frequently Asked Questions (FAQ)

Q1: Why is this calculation important for pool maintenance?
A: It helps determine proper chemical dosages and water replacement amounts when adjusting pool levels.

Q2: Does this work for irregularly shaped pools?
A: No, this calculation is only accurate for rectangular pools. Other shapes require different formulas.

Q3: How accurate is the 7.48 conversion factor?
A: 7.48052 gallons equals exactly 1 cubic foot, but we use 7.48 for practical purposes which is accurate enough for pool calculations.

Q4: Can I use this for saltwater pools?
A: Yes, the volume calculation is the same regardless of water type, though chemical dosing may differ.

Q5: How can I calculate total pool volume?
A: Multiply the gallons-per-inch result by your pool's average depth in inches.