Live eastern coast NE NC. Have soil that is pretty much sand. Pool installed by previous owner, sand base, lined steel panels, cove padding. By the book. Now, we have been having problems with moles devastating our yard with their tunnels, even trying to get under liner. Edges under pool just past cove are dug out leaving ruts and high spots. Am planning to replace liner in few weeks and wonder if anyone could suggest how we can deter from underground mess by moles. Any special padding? Don't think geotextile will do much, they will still create craters under lines and will eventually cave in. Any help would be appreciated. Wasn't sure of forum, so if it needs to be moved, please do.