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Once you have decided
on the location and shape of your pond, get digging! The soil
excavated from the pond area can be used to form an embankment
nearby - see Enhancing your pond.
A pond should ideally have a section at least 60cm deep to
protect certain animals (like frogs) from weather extremes,
particularly in winter.
Shallow, shelved areas are good for basking invertebrates and
tadpoles, and can be the most diverse and abundant area of a
pond.
When digging, ensure the edges of your pond are level. Use a
spirit level, a flat length of wood or stringed pegs to level
your pond.
Ensure you remove any sharp stones or pebbles. Add a layer of
geotextile material or some old carpet between the soil and the
new liner to lessen the likelihood of punctures.
When tackling the edges of your pond, dig a small trench around
the pond into which the liner can sit firmly. Use small rocks to
hold the liner in place. You can replant some lawn cuttings from
your earlier digging on top of the liner trench, this will hide
the liner edges.
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