Strengthening the edge with natural stones and wooden pegs.
It is a very good way to strengthen the edge with natural stones of various sizes and of various origins. The use of this method is possible above all there, where it is easy to get such material. Layer stones are the most suitable for fortifications (sedimentary rocks) or various rock blocks with at least two support planes parallel to each other. Such stones should be arranged on gravel or criminal bedding in this way, to form a mutually related arrangement, sufficiently based on the pressure of the granite mass forming the edge. This means, that stone blocks should be laid in a similar way as in dry, Natural stone garden walls.
The support planes of stone blocks should have a significant decrease towards the shore. This ensures better strengthening stability and makes it difficult to influence the tank of adjacent soil. In order to increase the tightness of stone fortification, tied with a gravel-sand mixture. Secondary sealing of such fortification takes place in the first year after the development of the roots of various plants inhabiting in the crevices. The strengthening described is very durable; Its use is recommended in accidents, When it is desirable to maintain a rich flora and fauna not only in the tank, but also in its coastal part.
Fortifications of the edges of the tanks: c) from stone blocks, d) from wooden dowels.
The edges of small tanks can be strengthened by driving next to each other properly impregnated wooden dowels. Wood intended for strengthening can be different, but dowels or piles made of oak are the most suitable for this, which shows quite high durability in the water. This strengthening is very decorative and allows you to keep the lawn surface in close proximity. The scope of use of wooden fortifications is usually limited by difficulties in obtaining appropriate wood.