Hey pedro, and thanks for helping! I have searched this board up and down and have found tons of useful information. What I should said was since it was seeping at the bottom about how much of a clay blanket would be good to line around the bottom inside of the pond? It's a small pond with a small area of leak. The soil is great for ponds it's a mizture of gray/yellow clay some sand and soil, it compact great and it's still only losing about 4 inches today with the leak seeping bad, so I don't think soil will be an issue. Thanks