1. What is the Pool Volume Formula?

The pool volume formula calculates the total water capacity of a rectangular swimming pool in litres. It's essential for proper chemical treatment, filtration system sizing, and maintenance planning.

2. How Does the Calculator Work?

The calculator uses the pool volume formula:

Where:

• \( V \) — Volume in litres
• \( L \) — Length in feet
• \( W \) — Width in feet
• \( D \) — Average depth in feet
• 28.32 — Conversion factor (cubic feet to litres)

Explanation: The formula multiplies the three dimensions to get cubic feet, then converts to litres (1 cubic foot = 28.32 litres).

3. Importance of Pool Volume Calculation

Details: Knowing your pool's volume is crucial for:

• Proper chemical dosing (chlorine, pH adjusters)
• Selecting the right size pump and filter
• Calculating heating requirements
• Water replacement calculations

4. Using the Calculator

Tips:

• Measure length and width at the water surface
• For depth, average the shallow and deep end measurements
• For irregular shapes, divide into rectangular sections
• All measurements must be in feet

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation?
A: Very accurate for rectangular pools. For freeform pools, it provides an estimate within 5-10% when average dimensions are used.

Q2: What about oval or circular pools?
A: Different formulas are needed. For circular pools: V = π × r² × D × 28.32 (where r is radius).

Q3: Why measure in feet when litres are metric?
A: Many pool products in the US/UK are dosed per cubic foot. You can convert to meters if preferred (1 foot = 0.3048 meters).

Q4: How often should I recalculate my pool volume?
A: Only when you significantly change the pool dimensions or if you suspect your previous calculations were inaccurate.

Q5: What's the margin of error for this calculation?
A: With precise measurements, error is minimal (±2%). Most errors come from inaccurate depth measurements.