Pond Liner Leaks: Koi Don't Puncture Liners, But Roots & Rocks Do

Intermittent Pond Leak: Liner Holes at Varying Levels

Butyl rubber liners are tough. Koi don't puncture them. Sturgeon? Unknown but unlikely.

Water drops to a level, stabilizes, then drops again = multiple holes at different heights.
Check the "stable" water line — that's where the worst leak is.
Visible holes? Claim warranty or installer repair.

Pond and Water Gardening: Building a Pond: The Absolute Essentials for a Healthy, Leak-Free Water Feature; Pond Liner vs. Concrete: Which to Choose?; Installing an Oversized Pond Liner: Techniques for a 17x20 ft Liner in an 8x6x4 ft Pond; Seaming Two Pond Liners at a Waterfall: Step-by-Step for a Leak-Proof Join; Preformed Pond Floating After Rain: Groundwater Solutions; Pond Empties Overnight Intermittently: Splash, Deer, or Hidden Leak; Winterizing a Shallow Fishless Pond: Liner Protection & De-icing; Leaking Pond Liner Seam: Repair or Replace?; Using Concrete as a Pond Liner: Pros, Cons, and Best Practices; Protecting Water Hyacinth Roots from Goldfish in an Indoor Atrium Pond

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