THE FILTRATION QUESTION
While it’s not essential to include a pump and filtration system in a pond, this conversion does include one, mainly because it supports quite a high fish population, as well as pet ducks. So to keep the pond clean, a pump circulates water from the pool up into a raised gravel bed, which grows a variety of semi-aquatic plants, such as taro. As the water passes through the bed, the impurities are extracted by both the gravel and the plant roots, and the filtered water then travels back through a pipe into the pool.
4 The floating pads of waterlilies and lotus bring greenery to the water’s surface – and then there’s the gorgeous seasonal flowers! They’re best grown in plastic pots at a depth of 30-60cm.
5 The pet ducks are now firmly established in their pond domain.