Durable 20-Mil LLDPE Pond Liner for Ponds, Lakes and Retention Basins

Half Off Ponds is a reliable, family-owned US-based company that specializes in the sale of pond supplies, equipment, and accessories. The company offers a wide range of products related to pond construction, maintenance, and landscaping, including pond kits, pond free waterfall kits, water pumps, filtration systems, pond liners, water treatments, fish food, and various pond accessories.

The 20-Mil LLDPE Pond Liner is an economical, extremely durable pond liner with high tear and puncture resistance, and high impact and tensile strength. It is pliable and flexible, conforming to a variety of irregular surfaces and attaching easily to waterfalls and skimmers. This LLDPE liner is an excellent choice for residential projects like water gardens, fish ponds, and backyard waterfalls with gently sloping sides and smooth contours, as well as for commercial and municipal projects like business campus retention ponds, public works water features, and residential beautification installations.

The LLDPE liner resists stress cracking even if exposed to direct sunlight. In non-exposed installations, where the liner is covered by earth, rock, or water and shielded from direct sunlight, it has a life expectancy of 40 years or longer. The liner is available in a variety of boxed and roll sizes in 20-mil thicknesses, ranging from 6 ft. x 5 ft. to 62 ft. x 200 ft.

Half Off Ponds highly recommends using an underlayment, such as their UnderGuard Underlayment Nonwoven Geotextile, when installing any type of pond liner. This underlayment adds an extra layer of protection between the pond liner and rocky or unstable soils, preventing air voids and reducing wear and abrasion. The UnderGuard Underlayment is a needle-punched nonwoven polypropylene geotextile fabric with high tensile strength, enhancing soil stability and controlling erosion.

For determining the size of the pond liner needed, the basic formula is: [(Pond Length') + (2 x Pond Depth') + (2') = Liner Length'] and [(Pond Width') + (2 x Pond Depth') + (2') = Liner Width']. To calculate the number of gallons of water in the pond, the formula for square and rectangular ponds is: (Pond Length') x (Pond Width') x (Pond Depth') x 7.5 = Gallon Size, and for oval ponds: (Radius1') x (Radius2') x Pi(3.14) x (Average Depth') x (7.485) = Gallon Size.

The recommended depth for fish ponds is at least 18", while for water gardens, the depth should be at least 12". The LLDPE pond liner from Half Off Ponds comes with a standard 10-Year Manufacturer's Warranty when exposed to direct sunlight, and a 40+ years of life expectancy when not exposed to direct sunlight and when covered by earth, rock, or water.

product information: