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Pond Liner Length Formula:
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The Swell UK Pond Liner Calculator helps determine the correct length of pond liner needed for your pond construction project. It follows Swell UK's guidelines to ensure proper coverage and overlap for a watertight installation.
The calculator uses the Swell UK formula:
Where:
Explanation: The formula accounts for the liner needing to cover the bottom length, both side depths, and provide adequate overlap on both ends for secure installation.
Details: Correct liner sizing is crucial for preventing leaks, ensuring proper pond construction, and avoiding costly repairs. Too little liner can lead to inadequate coverage, while too much results in unnecessary expense.
Tips: Measure your pond's maximum length, deepest point, and allow for at least 0.3-0.5 meters overlap on each side. All measurements should be in meters for accurate results.
Q1: What is the recommended overlap for pond liners?
A: Swell UK recommends a minimum overlap of 0.3-0.5 meters (30-50cm) on all sides to ensure proper anchoring and prevent leaks.
Q2: Should I add extra for irregular shapes?
A: Yes, for irregular pond shapes, use the longest length measurement and consider adding 10-15% extra material for complex contours.
Q3: What about pond width calculations?
A: This calculator provides length only. Remember to calculate width separately using the same formula: Width + 2×Depth + 2×Overlap.
Q4: How accurate are these calculations?
A: The formula provides a reliable estimate for rectangular ponds. For complex shapes, consult with pond construction professionals.
Q5: Can this be used for other liner types?
A: While designed for pond liners, the principle applies to any flexible liner installation requiring depth coverage and edge overlap.