It really is not hard to install one, if you have something to dig with it helps a lot. I used a flexible neoprene liner for my water feature since I wanted to put stacks under it to hold pots for water lilies and they need to be right up at the surface. When building a pond you just need a good book and watching home improvement shows on the subject gives you real ideas how to make it work nicely with the surroundings. You also want it to look natural. Some might like it to stand out but I wanted rock edgings and a flowing natural look to mine.