Knowledgebase
Welcome to the BTL Knowledgebase. Ever since we started lining ponds, creating covers, and helping people with their projects, we've gotten asked a lot of questions. Many of these questions are repeatedly asked, so we put together the BTL knowledgebase to help answer any questions you had about a particular subject. We are adding new questions every month, so continue to check back often!
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Can I use a tarp as a pond liner?
When trying to build a pond in your backyard on a budget, you may be tempted to use common materials like a tarp.
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What is pond underlayment made of?
The material known as underlayment is a geotextile that is thicker than a flexible pond liner.
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Do I need underlayment for pond liner?
Underlayment isn’t required for most pond liner installations, but it is a good idea to protect the material from damage.
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Should I put sand in my pond?
Sand is just one of many materials to cover the bottom of a pond with, and it has its own benefits and issues.
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What is pond underlayment?
Pond underlayment is a material designed to go underneath a flexible pond liner and protect it from ripping and tearing.
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How do you install a pond underlayment?
Pond underlayment isn’t any harder to install than any other flexible liner material.
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