Overflow

Make sure the pond is level! Use pegs, a straight board and a spirit level to make sure the water level will be the same on all sides of the pond. To prevent flooding, an overflow area should be built beyond the edge of your pond. This overflow area consists of a hole dug down to a free-draining layer which you should break up, backfill with clean stones, bricks and then cover with a filter and topsoil. The filter should be a piece of old carpet, fibre matting or a layer of turf laid upside-down and then put topsoil back on top. Vegetation suitable for a wet meadow can be planted in the overflow area. If your pond is built on uneven ground, make sure the overflow is built on the lower end.