I have started my pond extension today and do not plan to alter it again and would like some advise on pond liners. I have squared off the measurements and come up with 10ft x 10ft x 6ft allowing me an extra 2ft for the depth and 2ft on both lenght and width. Do you reckon this is enough overlap? At the moment I have a PVC liner and hate seeing the crease’s, what over alternatives do I have? I was thinking if they do a rubber liner then the problem with crease’s would not be a problem. Has anyone got a good source for liners I will need it in the next week or two?