Aquatic plants filter pond water by absorbing metals, ammonium, nitrates and phosphates while adding oxygen.
Aerating the water
If an outside powerpoint needs to be installed, have it wired by a qualified electrician.
Select a position
Landscaping the edges
How to install a pond
Set out the buckets and feature rocks to make an outline of the pond shape using marking paint to transfer a rope outline on the ground. Use a shovel to excavate a two-tiered hole to 200mm deep at the shallow end and 600mm at the reservoir end.
Dig out any sharp rocks and cut off any tree roots that may puncture the pond liner then line the hole with old carpet as protection for the liner. Unfold the pond liner and centre it over the hole, folding the edges to neatly follow the curve of the edge.
Drill 10mm diameter drain holes in all buckets using a twist bit. Backfill around the buckets with 20mm recycled concrete or gravel, keeping the height of the pump bucket 50mm below water level for easy access.
Clamp the flexihose to a low-voltage pump, positioning it in a bucket with a notch cut out of the rim for the cable and hose. Cut the flexihose to length and position it so water runs from the top of the spillway over the feature stones.
Test the flow of water by adjusting the regulator valve then cover the pump bucket and gravel with 10mm pebbles. Add river stones, about $90 a tonne from a landscape supplier, position edging around the pond then fill it with water.
Submerge the basket into the water until the soil is saturated then move it into position in the pond. Stand a basket of water plants on bricks or rocks until the shoots reach the surface then lower it until it sits on the bottom.