After unearthing, now is the right time to set up the ground for the lake liner. Set out a layer of defensive underlayment to forestall penetrates and harm to the liner. Underlayment likewise gives an extra hindrance against roots and shakes that might have been fitting a pond liner ignored during unearthing. Trim the underlayment to fit the lake's shape, passing on a few overabundance material along the edges to guarantee legit