A: It is only possible to eat the geomembrane at an edge, fold, or seam onto which the animal can grip. Since PVC geomembranes have 80% less field seams than polyethylene geomembranes, the likelihood of having an edge, fold, or seam is significantly less. However, it is important to note the following information about Watersaver Company PVC geomembrane liners: (1) they possess no compounds that have any food or nutritional value to rats and rodents, (2) the materials are not addictive, and (3) the reason for an animal eating through a geomembrane is probably to obtain access to the other side for food, warmth, or some other reason.