30 mil LLDPE (Linear Low-Density Polyethylene) Pond Liner and Underlayment Combos (Linear Low-Density Polyethylene)
50% thicker than comparable 20 mil LLDPE liners. Economical liner with excellent durability, high impact strength and puncture resistance.
Pliable and flexible; conforms to a variety of irregular surfaces. Excellent choice for projects like water gardens, fish ponds and backyard waterfalls.
Attaches easily to waterfalls and skimmers; fits into corners and follows contours along the sides and bottom of your pond.
Standard 10-year warranty when exposed to direct UV radiation; 40 plus year non-exposed life expectancy when covered by earth, rock or water.
These Listings Include UnderGuard Geotextile Underlayment
The biggest contributors to pond liners failing are poor, unstable soil conditions and rips and tears from rocks and boulders. Shifting soil creates pockets and voids under your pond liner, forcing it to stretch under the weight of the water. Rocks and boulders placed on and around your water feature create aesthetically pleasing visual focal points. They can also penetrate, tear and harm your liner.
Underlayment adds an extra layer of protection between pond liner and rocky or unstable soils. It stabilizes soil to prevent air voids from forming between the liner and earth; reduces wear and abrasion from rocks and roots and extends the life of pond liner.