Carlisle’s fish-friendly AquaTough rubber pond liners combine design flexibility, long-term durability and easy installation, making them an ideal choice for a variety of waterscape applications, including reflective ponds, decorative ponds, water gardens, hardscapes, streams, and much more.

One of the most popular and practical ways to enhance a home’s outdoor living space is through landscaping elements like water features. Tranquil ponds, water gardens and bubbling fountains that can convert the bleakest patch of ground into a beautiful, peaceful retreat.

Carlisle’s fish-friendly AquaTough rubber pond liners combine design flexibility, long-term durability and easy installation making them an ideal choice for a variety of waterscape applications including:

• Reflective Ponds
• Decorative Ponds
• Koi Ponds
• Water Gardens
• Fountains
• Hardscapes
• Pondless Water Features
• Streams
• Watefalls
  
  

FAQs

Q: Can I use Carlisle AquaTough EPDM liner for a koi pond?
A: Yes. AquaTough is suitable for koi ponds, decorative ponds, water gardens, streams, waterfalls, fountains, and other residential water features

Q: How do I determine what size liner I need?
A: A commonly used sizing formula is:

Liner Length = Pond Length + (2 × Maximum Depth) + Extra for Edges
Liner Width = Pond Width + (2 × Maximum Depth) + Extra for Edges

For example, a pond that is 10' × 15' and 3' deep requires more than a 10' × 15' liner because the liner must travel down the sides and across the bottom. Adding roughly 1–2 feet of extra material on each overall dimension gives you material for anchoring and final trimming.

Q: Should I use underlayment underneath Carlisle AquaTough EPDM Liner?
A: Yes, it is generally recommended. Pond underlayment provides an additional protective layer between the EPDM and rocks, roots, compacted soil, and other objects that could damage the membrane.

Q: Can AquaTough EPDM Liner be cut?
A: Yes. EPDM liner can be trimmed to fit the pond. It's best to wait until the pond is filled and the pond edging is complete before doing the final trimming.

Q: Can two pieces of AquaTough EPDM Pond Liner be joined together?
A: Yes. EPDM sheets can be seamed using EPDM primer and either/or seam tape or cover tape. The liner surfaces must be clean and dried before primer and tape are applied.

Q: Can a hole or puncture in a AquaTough EPDM Pond Lliner be repaired?
A: Yes. One advantage of EPDM is that localized damage can generally be repaired with a EPDM Patch Kit or with Cover Tap and Primer. The liner surfaces must be clean and dried before primer and tape are applied.

Q: Is Carlisle AquaTough EPDM Pond Liner resistant to sunlight and weather?
A: Carlisle AquaTough EPDM is designed for long-term outdoor exposure and carries a life time warranty aginst to UV, ozone, oxidation, and weathering.

Q: What causes wrinkles in an EPDM pond liner?
A: Some folds and wrinkles are normal, especially in ponds with curves, shelves, or irregular shapes. Carefully arranging folds while filling the pond helps minimize them. EPDM's flexibility is one reason it works well for complex pond shapes.

Q: Is Carlisle AquaTough EPDM Pond Liner the same thing as Carlisle Roofing EPDM Liner?
A: No. Although both use EPDM technology, AquaTough is Carlisle's pond/waterscape product and is specifically described as fish-friendly. Roofing membranes have different intended applications and formulations such as fire retardants that are toxic to fish and other aqutic life. For a pond, use a membrane specifically approved for that application.

Q: What thickness of EPDM Pond Liner should I use?
A: 45-mil EPDM is one of the most common choices for residential ponds and water features. It provides a good combination of flexibility, puncture resistance, and durability.

Q: Will folds or wrinkles hurt the EPDM Pond Liner?
A: Some folds and wrinkles are normal, particularly in irregularly shaped ponds. They won't affect performance. Most can be arranged neatly as the pond fills.

Q: Can a new EPDM Pond Liner be installed over an old pond liner?
A: An existing liner can potentially provide additional protection if it is clean and doesn't contain sharp or damaged areas.