Posted: 09/09/2013 at 19:20
Hi Little weeeed, if you are putting the breeze blocks under the liner to make shelves, cover them with some old carpet/underlay to cushion them from the liner. With the pressue/weight of the water against the rough corners of a breeze block a hole could soon form and ruin your pond.
A picture of work so far might give us some ideas of how to help you finish off the edges. It doesn't have to be the same all the way round and ther are many different ways of doing it!