Eco-system ponds work by having a 2 stage filtration process. The first stage is to remove leaves and blossom that arrives on the surface with a surface skimmer system.
The old raised pond was removed in favour of a new eco-system pond of 3M x 2.4M ecosystem pond containing around 2500Litres. The water is crystal clear. The fish love coming up from the fish cave and playing in the currents.
Here are the first pictures taken about 2 weeks after install and just after planting the surrounding border with ferns and evergreens